German/DDR Slide Rules
(Manufacturers. Distrubutors and Countries not found in their own gallery)
This gallery is dedicated to slide rules and manufacturers located within Germany, including pre-Berlin Wall, DDR Eastern Germany. The DDR slide rules, RS, Reiss, Meissner KG, Veb Mantissa came from the region of Dresden and Bad Liebenswerda and were manufactured from 1882 through 1984. Note: Belgium has three official languages and is in the France gallery, even though Dutch and German is spoken more often than French. Switzerland has four official languages one of which is German, but has been placed in its own gallery.
KEEP ISRM FREE!
Manufacturers included in this gallery:
ALKU (ALfred HUhmann) - East Germany
Controller Calculator KG - West Germany
Ecobra - Germany
Fedra - East Germany
Friedmann - Germany
H-H Universum
IWA = Germany
Karl-Wess - Germany
Joe Klawun - Germany
Meissner - DDR/Germany
Norma - Germany
Reiss - Germany
REWA - Germany
Rista - Germany
Seehas - Germany
Staedtler - Germany
Standardgraph - Germany
Veb EAW - DDR/Germany
Veb Mantissa - DDR/Germany
Wichmann - Germany

ALKU Rechenschieberfabrik, ALfred KUhmann


REF ALKU Rechenschieber

ALKU Rechenschieber
Made in Neueibau, East Germany, Designed by Alfred Kuhmann, c1945
Front Scale
A [ B, R(CI), C ] D
Back - Blank
Note the 7" long main substrate, stator and slides are made of glass with the scales made of paper laminate.
Archive - Scan Donated by Nathan Zeldes, Israel.
Instructions, 2 pgs (200Kb PDF)

Controller Calculator Schnelirechner KG
CONTROLLER - Rechen-Scheiben



REF Controller Circular Slide Rule 75mm Diameter

Controller Circular Slide Rule 75mm Diameter
Made in Munich, West Germany, bu Controller Calculator KG, DGRM, c1959
Front Scale
C ( D, A, K)
Back - Conversions
Archive - Scan Donated by Rod Lovett Collection.
Instructions, 1965-1966 (German) (4.82MB PDF)


Controller Circular Slide Rule 75mm Diameter 1970

ISRM 13.03.15.02
Controller Circular Slide Rule 75mm Diameter 1970
Made in Munich, West Germany, bu Controller Calculator KG, DGRM, 1970
Front Scale
C ( D, A, K)
Back - Conversions
Warranty Number: 705/3433R
Instructions, 1970 (German) (6.2MB PDF)


REF Controller 110R Circular Slide Rule 110mm Diameter

Controller 110R Circular Slide Rule 110mm Diameter
Made in Munich, West Germany, bu Controller Calculator KG, DGRM, c1961
Front Scale
C ( D, A, K)
Back - Conversions
Archive - Scan Donated by Giovanna Breda Collection.


REF Controller 110R Circular Slide Rule Version 2 110mm Diameter

Controller 110R Circular Slide Rule Version 2 110mm Diameter
Made in Munich, West Germany, by Controller Calculator KG, DGRM, c1961
Front Scale
C ( D, A, K)
Back - Conversions
Archive - Scan Donated by Giovanna Breda Collection.


Controller 110R Circular Slide Rule Version 3 110mm Diameter

ISRM 13.03.15.03
Controller 110R Circular Slide Rule Version 3 110mm Diameter
Made in Munich, West Germany, by Controller Calculator KG, DGRM, 1970
Front Scale
C ( D, A, K)
Back - Conversions
Warranty Number: 705/5433Y
Instructions, 1970 (German) (6.2MB PDF)


REF Controller 200R Circular Slide Rule 220mm Diameter

Controller 200R Circular Slide Rule 220mm Diameter
Made in Munich, West Germany, by Controller Calculator KG, DGRM, c1961
Front Scale
C ( D, A, K)
Back - Conversions
Archive - Hermann's Slide Rule Catalogue.



P106 Eco-Bra 1270
Eco-Bra 1270 Pocket - Closed simplex
Made in Germany - c1940 - all aluminum
Front Scale (unmarked)
14cm // A [ B, C ] D
Back Adv: Aluminum Company of Canada


REF Eco-Bra Rietz R141
Eco-Bra Rietz R141
Made in Germany - c1960 - Plastic
Front Scale
13cm // A [ B, CI, C ] D, K
Archive - W. Girbardt (Univ Greifswald, Germany) Collection


P257 Eco-Bra Darmstadt R143
Eco-Bra Rietz R141
Made in Germany - c1960 - Plastic
Front Scale
13cm // LL2, LL3, A [ B, CI, C ] D, K, LL1
Back Scale
P, T Cot, L, S Cos
Back Adv: INA-Nadellager



P267 Eco-Bra nr1461 System Rietz
Ecobra nr1461 System Rietz
Made in Germany - c1950 - Painted aluminum
Front Scale
K, A [ B, R, C ] D, lg
Back Scale
5in [ sin, tg ]
Original location: Netherlands


REF Eco-Bra 154 Cosmos
Eco-Bra 154 Cosmos
Made in Germany - Plastic - Identical to Hope 530
Front Scale (extended)
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, Ll2, LL1
Back Scale
T Cot, ST ST, DF [ CF, CIF, CI, C ] D, P, S Cos
Archive - Rod Lovette Collection


REF Eco-Bra 1460
Eco-Bra 1460
Made in Germany - c1950
Front Scale (extended Scales)
14cm // K, A [ B, R, C ] D, Lg
Cursor: Multiple hairlines
Archive - Scan provided by Cassou Olivier (France) Collection


REF Eco-Bra 1500
Eco-Bra 1500
Made in Germany - c1940 - all aluminum
Front Scale
25cm // K, A [ B, CI, C ] D, L
Archive - W. Girbardt (Univ Greifswald, Germany)Collection


Eco-Bra 1611 Darmstadt Special

ISRM 09.01.12.106
Eco-Bra 1611 Darmstadt Special
Made in Germany - Painted Aluminum
Front Scale (extended)
T Cot, S Cos, DF [ CF, CI, C ] D, P
Back Scale
K, A [ B, Lg, C ] LL3, LL2, LL1
Donated by David Hecht, Alexandria, VA


REF Eco-Bra 1711 Cosmos
Eco-Bra 1711 Cosmos
Made in Germany - Aluminum
Front Scale (extended)
LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, Ll2, 
Back Scale
LL01, K, A [ B, T<45 Cot, T>45 Cot, ST, S Cos ] D, P, S , LL1
Archive - Rod Lovette Collection

Fedra



ISRM Fedra Log Log
Fedra Log Log - Closed duplex - DC Aug1968
Made in East Germany possibly by Veb Mantissa
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
27cm, S, ST, T, LL1, LL2, LL3, 10.75Inch
Back Slide: [Greek Alphabet]
Same as Staedtler Mars 544-52 Log Log
Donated by Seth Balish

Note: This model is available in the Slide Rule Loaner Program supplied through the generosity of Skip Zogopoulos, Exeter, NH who has donated over 200 of these slide rules to ISRM as well as many other items to support the activities of the museum.

Friedmann

Mannheim Friedmann 4in Pocket Mannheim
Made in Germany
Front Scale
A [ B, CI, C ] D, K
Back Slider
[ S, L, T ]

H-H Universum



P255 H-H Universum System Rietz
H-H Universum System Rietz
Made in Germany - c1930
Front Scale - Extended
22cm // A [ B, CI, C ] D, L \\ 22cm
Back Scale: [ S, T ]
Multilined Cursor
Back: Conversions (German)

IWA - Ingenieurerbüro für wirtschafliches Arbeiten

IWA is most famous for its slide charts. These in this gallery more resemble generic slide rules.


REF IWA 0272 Electronic
IWA 0272 Electronic
Made in Germany for Dutch firm De Muiderkring N.V.- c1963
Front Scale - Extended
Lambda, Omega, f [ C, L, RC ] L/C, RL
Back Scale:
K, Sin Cos, A [ B, CI, C ] D, Ln, 25cm
Multilined Cursor
Archive - scan by Tom Cattrall
IWA-0272 Muiderkring electronic
Instructions for the MK slide rule. (English)
Manual Scan provided By David Walker, UK


REF IWA 01206 Machining - Roughness Slide Rule for Turning
IWA 01206 Machining - Roughness Slide Rule for Turning
Made in Germany - c1971
Front Scale - Extended
26 cm // r (4 scales), feed [ V in m.min ] Ra, Rt \\ 10.2 inches
Back: Direction in English and German
Archive - scan by Jim Cerney

Karl-Wess



P125 Karl Wess
Karl Wess - Closed simplex
Made in Germany(?Aristo)
Front Scale
13cm // A [ B, CI, C ] D, K || 5inch
Back Slider: [ S, L, T ]

Joe Franz Klawun
Feinmessinstitut (FeinmeBinstitut) Klawun, Berlin - Charlottenburg 5



Feinmessinstitut Joe Klawun No.11 Mannheim (Nestler No.2)

ISRM 13.09.16.03
Feinmessinstitut Joe Klawun No.11 Mannheim(Nestler No.2)
Made in Germany by Albert Nestler for Feinmessinstitut Joe Klawun, Berlin-Charlottenburg 5
Note: Nestler model 2
Front Scale: A [ B, C ] D
Back Slide: [ S, Lg, T ]
Cursor: Missing, see Nestle No. 9 for proper cursor.
Back: Blank


Feinmessinstitut Joe Klawun No.25 Sys.Rietz (Dec 1938)

ISRM 13.09.16.03
Feinmessinstitut Joe Klawun No.25 Sys.Rietz dc38-12
Made in Germany by Faber-Castell for Feinmessinstitut Joe Klawun, Berlin
Note: Faber model No 1/94/394. "Railroad track" style divisions
Front Scale (extended) scales labeled
27cm // K, A [ B, CI, C ] D, L || 10inch
Back Slide: [ S Cos, ST, T Ctg ]
Cursor: Metal framed
Back: Conversions (German)
Original Owner: Spordeler (on back of stock)


REF Feinmessinstitut Klawun No.31C
Feinmessinstitut Klawun No.31C
Made in Germany by Faber-Castell
Front Scale (extended)
14cm // K, A [ B, CI, C ] D, L
Back Scale: S, ST, T
archive - Andreas Tabak Collection, The Netherlands


REF Feinmessinstitut Klawun Rietz No.100
Feinmessinstitut Klawun Rietz No.100
Made in Germany by Faber-Castell
Front Scale (extended)
27cm // K, A [ B, CI, C ] D, L
Back Scale: Sin, Sin/Tg, Tg
archive - Andreas Tabak Collection, The Netherlands


REF Feinmessinstitut Klawun Rietz No.100 Hanover
Feinmessinstitut Klawun Rietz No.100 Hanover
Made in Germany by Faber-Castell
Front Scale (extended)
27cm // K, A [ B, CI, C ] D, L
Back Scale: Unknown, but assumed to be S, SRT, T
archive - Andreas Tabak Collection, The Netherlands


REF Feinmessinstitut Klawun No.125 LL Hanover
Feinmessinstitut Klawun No.125 LL Hanover
Made in Germany by Faber-Castell
Front Scale (extended)
27cm // K, A [ B, L, CI, C ] S, ST, T1, T2
Back Scale: LL2, S', LL1
Multi-lined Cursor
archive - Andreas Tabak Collection, The Netherlands


P258 Joe Klawun No. 666/T
Joe Klawun No. 666/T - Closed simplex
Made in Germany (identical to Nestler 11-ZM) Feinmessinstitut Klawun
Front Scale (extended)
13cm // A [ B, C ] D
Back: Blank


ISRM Feinmessinstitut Klawun Aristo 0908 TriLog (1973)
Feinmessinstitut Klawun Aristo 0908 TriLog (dc3LR37)
Made in Germany by D&P for Klawun Feinmessinstitut Hanover
Front Scale
T1. T2, A [ B, BI, CI, C ] D, P, S , ST
Back Scale
LL1, LL2, LL3, DF [ CF, CIF, CI, C ] D, L, K
Multiple hairlines: PS, KW
Donated by Ted Hume, Texas


Joe Klawun No1001/S - System Klawun (Business Rule)
Der Rechenstab des Kaufmanns - System Klawun

ISRM 11.12.15.03
Joe Klawun No1001/S - System Klawun (Business Rule)
Made in Germany by Albert Nestler for Feinmessinstitut Klawun
Front Scale (extended)
27cm // DF (KZ) [ CF (T), (CI) Val. (p%), (C) E (T) ] (D) V (Z) || 10 inch
Back Slide Scale: [ sh/d (-sh/d), £ (lg)]
Back : Instructions (German)
Note 1: Z = Zins (interest): K = Kapital (principal); p = Zinsfuss (interest rate); T = Tage (days).
Note 2: The DF/CF scales are folded at 3.6.
Note 3: At right end of back is a slogan: "Alles was Rechnen erleichtert liefert Klawun" Translated to English: "Klawun delivers everything that makes calculation easier."

Meissner



REF Meissner KG Multi Pocket
Meissner KG Multi Pocket (1974)
Made in DDR/Germany - Same factory as Veb Mantissa
Front Scale
13cm // ST, A, DF [ CF, CIF, CI, C ] D, P, S, T
Back Slider (unverified): [ LL1, LL2, LL3, L ]
Cursor: multiple hairlines
Archive - Gerhard Wenzel collection (Netherlands)


REF Meissner KG Mono Rietz 731-541
Meissner KG Mono Rietz 731-541
Made in DDR/Germany - Same factory as Veb Mantissa
Front Scale
L, K, A[ B, CI, C ] D, S, T, ST
Back Slider (unverified): [ LL1, LL2, LL3, L ]
Archive - Courtesy of www.oldjurnal.narod.ru

Norma Rechenscheibe



Norma Grafia 190

REF
Norma Grafia 190
Made in Germany DBRG
Front Scale
C ( D )
Guage marks for the Graphics/Typography Industry
Back: Blank
Archive - Scan by Hubert van Dongen Collection


Norma Mercuria 190

REF
Norma Mercuria 190
Made in Germany DBRG
Front Scale
C ( D, DI, %, %, constants )
Guage marks for the Graphics/Typography Industry
Back: Blank
Archive - Scan by Rod Lovette Collection


Norma Rieger 190

REF
Norma Rieger 190
Made in Germany DBRG
Front Scale
C ( D )
Guage marks for the Graphics/Typography Industry
Back: Blank
Archive - Scan by Rod Lovette Collection

Reiss

Bad Liebenwerda, (East)Germany


P002 Reiss Pocket Simplex
Reiss Simplex
Made in Germany - brushed aluminum
Front Scale
13 CM // A [ B, C ] D
Back Scale
[ Sin, Log, Tg ]


Reiss Darmstadt DDR

ISRM 04.07.03.01-D7
Reiss Darmstadt DDR
Made in East Germany - Brushed Aluminum
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
Cos, Sin/Tg [ LL1, LL2, ll3 ] sin, tg
Cursor: 4 hairlines


Reiss 3223 Progress

REF
Reiss 3223 Progress
Made in East Germany DDR - Brushed Aluminum
Front Scale
A, DF [ CF, CI, C ] D, L
Back Scale
T1, T2 [ LL1, LL2, ll3 ] D, S, Cos
Cursor: All plastic cursor. Very unique design.
Archive - Scan by Steve Seale Collection


Reiss 3201 Rietz-Spezial

ISRM 09.02.28.01
Reiss 3201 Rietz-Spezial
Made in Germany - brushed aluminum
Front Scale
L, DF [ CF, CIF, C ] D, DI
Back Scale (extended)
ST, T [ K, B, C ] S, P


Reiss 60/0015 Rietz

ISRM 13.01.08.02
Reiss 60/0015 Rietz - dc 749
Made in Germany - brushed aluminum. Has "2" on one end of stock and slide for matching parts.
Front Scale (extended): 28cm / K, A [ B, CI, C ] D, L
Back Scale (has rear hairline): [ Sin, Sin/tg, tg ]
Note: This specimen is missing its cursor. See below.
This slide rule was owned by Susanne Petersson's brother, Andeas, who recalls that his grandmother, gave this to him along with a set of drafting tools. Another donation of a Metric Converter slide rule is in the Sterling gallery
In Family photo on left: Grandmother, Susanne, sister Sylvia, brother Andreas


S038 Reiss Rietz
Reiss Rietz
Made in East Germany - Brushed Aluminum
Front Scale
K, A [ B, CI, C ] D, L
Back Slider
[ Sin, Arc, Tan ]
Cursor: 4 hairlines - PS, KW


REF Reiss 3209 Pocket Simplex
Reiss 3209 Simplex (1972)
Made in Germany - brushed aluminum
Front Scale (extended)
13 CM // K, A [ B, C ] D, L
Back Scale (not verified):[ Sin, S&T, Tg ]
Archive - Gerhard Wenzel collection


Reiss 3214 Darmstadt-Record

REF
Reiss 3214 Darmstadt-Record
Made in Germany - Plastic
Front Scale (extended scales)
L, K, A [ B, CI, C ] D, LL1, LL2, LL3
Back Scale
P, S, ST, DF [ CF, CIF, CI, C ] D, T1, T2, DI
Cursor: 3 hairlines
Original owner: Sckerr Peter Schwerin
Archive Photo contributed by Marion Moon


Reiss 3227 (Log Log Vector) Duplex

REF
Reiss 3227 (Log Log Vector) Duplex
Made in Germany - Plastic
Front Scale (extended scales)
K, T1, T2, DI, A [ Sh1, Sh2, Sz, C ] D, Sk, P, ST, L
Back Scale
LL00, LL01, LL02, LL03, DF [ CF, CIF, BI, CI, C ] D, LL3, LL2, LL1, LL0
Cursor: 3 hairlines
Archive - Scan by Steve Seale Collection


S198 Reiss 3236 Darmstadt
Reiss 3236 Darmstadt - Duplex
Made in Germany - Plastic
Front Scale (extended scales)
K, A [ B, CI, C ] D, L
Back Scale
P, S [ LL1, LL2, ll3 ] T1, T2
Cursor: 3 hairlines


Reiss Rietz

ISRM 09.01.12.107
Reiss Rietz
Made in Germany - Plastic
Front Scale
13cm // K, A [ B, CI, C ] D, L
Back Scale
[ S, T]
Cursor: 3 hairlines
Donated by David Hecht, Alexandria, VA


Reiss Darmstadt DDR

ISRM 09.01.12.108
Reiss Darmstadt DDR - Duplex
Made in East Germany - Plastic
Front Scale
K, A DF [ CF, CIF, CI, C ] D, P, S, T
Back Scale
[ LL1, LL2, LL3, L]
Cursor: 4 hairlines
Donated by David Hecht, Alexandria, VA

REWA



REWA 10M Rechenwalze Cylindrical Slide Rule (c.1910)

REF
REWA 10M Rechenwalze Cylindrical Slide Rule
Made in Germany
Cylindrical C & D scales in 50 sections
Note: Similar to Daemen-Schmid 10 m Rechenwalze, but some details are different. May be a copy. Right end of cylinder marked: "A.H. Nitschke. Straupitz-Hirschberg in Schl." Only example known. Smaller 3-m REWA sold at Breker auction in 2007. The REWA brand is unknown to Heinz Joss, the Swiss specialist on cylindrical slide rules. REWA may be an abbreviation for REchenWAlze.
Archive - Ed Chamberlain Collection.

E. O. Richter

E. O. Richter (c1841-1907) founded the firm in Chemnitz, Saxony, after training as a clockmaker. In 1892 he patented his 'flat system', copied by many other makers after his patent ran out in 1905. Firm became a VEB Kombinat (i.e. a state owned company) in 1945. Richter instruments continued to be made in the DDR until the 1980s at least. (text by David Riches, UK)


Richter Rietz 11

SRC32841
Richter Rietz 11
Made in Denmark by UTO for E.O.Richter
Front Scale
13cm // K, A [ B, CI, C ] D, L
Back Scale
[ S, S&T, T
Archive - Scan from Hermann's Slide Rule Catalog


Richter Electro 22

SRC32841
Richter Electro 22
Made in Denmark by UTO for E.O.Richter
Front Scale
13cm // Dyn/Mot, Volt, A(KW) [ B, CI, C ] D, &# 966;, &# 966;, L
Back Scale
[ S, S&T, T
Archive - Scan from Hermann's Slide Rule Catalog


Richter Rietz 1

REF
Richter Rietz 1
Made in Denmark by UTO for E.O.Richter
Front Scale
27cm // K, A [ B, CI, C ] D, L
Back Scale
[ S, S&T, T ]
Archive - Scan By Giovanni Breda Collection


Richter Darmstadt 3

REF
Richter Darmstadt 3
Made in Denmark by UTO for E.O.Richter
Front Scale
27cm // L, K, A [ B, CI, C ] D, P, T, Cot, S, Cos
Back Scale
[ LL1, LL2, LL3 ]
Archive - Scan By Giovanni Breda Collection

Rista



S259 Rista Rietz 1
Rista Rietz 1
Made in  Germany - Plastic
Front Scale
K, A [ B, CI, C ] D, L
Back Slider
[ S, S&T, T ]
Cursor: 4 hairlines

Seehase, Dr. Ing.

Design based on German patent DE727007, 4 September 1939 by Dr. Ing. Hans Seehase.


P015 Dr. Ing. Seehase Pocket
Dr. Ing. Seehase Pocket - Advertising - c1950
Made in Germany
Front Scale
A [ B, C ] D
Back: Hardwick Hindle Inc. Resistors, USA


REF Dr. Ing. Seehase Pocket
Dr. Ing. Seehase Pocket - Advertising - c1950
Made in Germany
Front Scale
A [ B, C ] D
Back Scale: 5inch [] 13cm Back: Automotive Products Company, London.
Archive - Herman's Slide Rule Catalogue


REF Dr. Ing. Seehase - Elektro Praktikus
Dr. Ing. Seehase - Elektro Praktikus - c1950
Made in Germany - Alternating Current (power) Calculator
Front Scale
m [ A, V ][ qmm ] Cos (phase)
Back Scale:
qm [ Lx, Lp ][ Watt ] n (eta)
Note: two slides
Archive - Herman's Slide Rule Catalogue


REF Dr. Ing. Seehase - Träger-rechenstab
Dr. Ing. Seehase - Träger-rechenstab - c1950
Made in Germany - Structural Calculator
Front Scale
cm [ m, cm ] Kg/m2
Back Slide:
[ m, (nomograph), cm ]
Back: Reference Tables, Nomographs
Archive - Herman's Slide Rule Catalogue


REF Dr. Ing. Seehase - Sonderrechenstab SR 704
Dr. Ing. Seehase - Sonderrechenstab SR 704 - c1950
Made in Germany - Spring Design Calculator
Front Scale
Wire dia [ Radius of coil, Kg/cm2 ] P gramm (force)
Archive - Herman's Slide Rule Catalogue


REF Dr. Ing. Seehase - Sonderrechenstab SR 705
Dr. Ing. Seehase - Sonderrechenstab SR 705 - c1950
Made in Germany - Spring Design Calculator
Front Scale
Number of coils [Wire dia, Radius of coil][stress, P (force) Kg/cm2 ] f (Travel) mm
Note: Two slides
Archive - Herman's Slide Rule Catalogue




Staedtler Mars 54401 Darmstadt

ISRM 07.02.12.02
Staedtler Mars 54401 Darmstadt - 1961
Made in Germany
Front Scale
10.5 // L, K, A [ B, CI, C ] D, P, S Cos, T Cot
Back Scale
Equivalents (english) [ LL1, LL2, LL3]
Donated by Russell Fox, Anchorgae, Alaska.
This slide rule, and another in the Aristo gallerty, was used by Russel Fox's father who purchased it in Germany 1961-1964. His father worked as an Electrical Engineer with BPA in Portland, Oregon.


S093 Staedtler Mars 544LL
Staedtler Mars 544LL - Open Simplex
Made in Germany
Front Scale
L, K, A [ B, CI, C ] D, S (Cos), ST, T (Cot)
Back Slider
25cm [ S, LL1, LL2, LL3] 10 inch


Staedtler 544-08 Log Log Duplex (1960)

REF
Staedtler 544-08 Log Log Duplex - date code 560
Made in Germany by Nestler
Front Scale
CT, T, ST, DF [ CF, CIF, CI, C ] D, P, S CS
Back Scale
LL01,LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Scan provided by the Steve Seale Collection, Nashville, Tennessee


REF Staedtler Mars 544-28 Log Log
Staedtler Mars 544-28 Log Log - dc969 ( Sep 1969)
Made in Germany by Nestler (same as Nestler 0292)
Front Scale
P, S Cos, T1 Cot1, T2 Cot2, A [ B, K, CI, C ] D, R1, R2, L, ST
Back Scale
LL00, LL01, LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1, LL0
Multilined Cursor: kW, HP
Archive - Larry Kehl collection


S548 Staedtler Mars 544-52 Log Log
Staedtler Mars 544-52 Log Log (Jan 1969)
Made in Germany - date code 169
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
25cm, S, ST, T, LL1, LL2, LL3, 10 inch
Multilined Cursor: kg/m, S, kW, HP


Staedtler Mars 544-55 Rietz-Scolaria

ISRM 14.01.10.18
Staedtler Mars 544-55 Rietz-Scolaria (Feb 1962)
Made in Germany - date code 262
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: S, ST, T
Back of Slide: Blank: Multilined Cursor: kg/m, S, kW, HP
Gift of the Bill Wehrend Collection, Palo Alto, California.


Staedtler-Noris 944-02

ISRM 04.09.20.01-D7
Staedtler-Noris 944-02 - Open simplex
Made in Japan
Front Scale
L, K, A [ B, CI, C ] D, S, ST, T
Back Scale 25cm [S, LL1, Ll2, Ll3 ] 10in



S131 Staedtler-Noris 944-03
Staedtler-Noris_944-03 - Open simplex
Made in Japan
Front Scale
T1, T2, K, A [ B, CI, C ] D, S, ST, L
Back blank



Staedtler Mars 944-24 (1969)

REF
Staedtler Mars 944-24 - date code T.S.6
Made in Japan by Relay/Ricoh
Front Scale
LL0, L, K, A [ B, S Cos, ST ST, T Cot, C ] D, DI, P, LL0
Back Scale
LL1,LL2, LL3, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1
Scan provided by the Steve Seale Collection, Nashville, Tennessee


Staedtler Mars 944-28 Log Log

REF
Staedtler Mars 944-28 Log Log
Made in Germany by Nestler (same as Nestler 0292)
Front Scale
L, K, A [ B, ST, T Cot, S Cos, C ] D, DI, LL0, LL-0
Back Scale
LL-1, LL-2, LL-3, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1
Multilined Cursor: C, kW, HP
Scan provided by the Steve Seale Collection, Nashville, Tennessee


Staedtler Mars 944-82 Log Log

ISRM 09.01.12.109
Staedtler Mars 944-82 Log Log
Made in Japan
Front Scale
T1 (Cot1), T2 (Cot2), DF [ CF, CIF, S' (Cos), C ] D, (P), S (Cos), ST (ST)
Back Scale
LL0, L, K, A [ B, BI, CI, C ] D, LL3, LL2, LL1
Multilined Cursor: kW, HP
Donated by David Hecht, Alexandria, VA


P178 Staedtler-Noris 945-03
Staedtler-Noris 945-03 - Closed
Made in Japan
Front Scale
5in // K, A [ B, CI, C ] D, L
Back scale: [ S, ST, T ]


Standardgraph



REF - Standardgraph No. 910 Disco-Rietz
Standardgraph No. 910 Disco-Rietz
Made in West Germany c1960 - 12.8cm diameter
Front Scale - L, CI, C ( D, Sin Cos, Tg Ctg, R)
Archive - Scan donated by John Krijnen, Netherlands


VEB Electro-Apparate-Werke (EAW)



VEB Electro-Apparate-Werke (EAW) Pocket
I
SRM 09.01.12.109
Veb VEB Electro-Apparate-Werke (EAW) Pocket- c1946
Made by Berlin-Treptow, DDR Germany - wood stock with plastic laminate
Front Scale
13cm // K, A[ B, CI, C ] D, L
Back Scale: [ sin, sin/tg, tg ]
Donated by David Hecht, Alexandria, VA
Note: VEB Electro-Apparate-Werke, later renamed Berlin-Treptow, was a public owned company founded in 1928 by Friedrich Ebert and made radios, relays and control equipment. Berlin-Treptow was one of the largest manufacturers of electric appliances in the GDR and had 8,000 employees. After Stalin's death the factory was renamed EAR JW Stalin. The company was privatized in 1993.


Veb-Mantissa



P107 Veb Mantissa Multi Pocket
Veb Mantissa Multi Pocket - Closed simplex
Made in DDR/Germany
Front Scale
13cm // ST, A, DF [ CF, CIF, CI, C ] D, P, S, T
Back Slider: [ LL1, LL2, LL3, L ]
Cursor: 3 hairlines


Veb Mantissa Record 1731-421

ISRM 04.10.12.01-D7
Veb Mantissa Record 1731-421
Made in DDR/Germany
Front Scale
L, K, A [ B, CI, C ] D, LL1, LL2, LL3
Back Scale
P, S, ST, DF [ CF, CIF, CI, C ] D, T1, T2, DI


REF Veb Mantissa Trim LL 1731-433
REF Veb Mantissa Trim LL 1731-433
Made in DDR/Germany
Front Scale
P, S, K, A [ B, L, CI, C ] D, T1, T2, DI
Back Scale
LL01, LL02, LL03, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1
Archive - Rod Lovett Collection


S200 Veb Mantissa 1731-511 Rietz
Veb Mantissa 1731-511 Rietz - Duplex
Made in DDR/Germany
Front Scale
K, A [ B, CI, C ] D, L
Back Scale: [ S, ST, T ]
Cursor: 3 hairlines


S163 Veb Mantissa Darmstadt II 1731 523/4
Veb Mantissa Darmstadt II 1731-523/4
Made in DDR/Germany
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
P, ST [ LL1, LL2, LL3] D, T, S


S059 Veb Mantissa Mono Rietz 1731-541
Veb Mantissa Mono Rietz 1731-541 - Simplex
Made in DDR/Germany
Front Scale
L, K, A [ B, CI, C ] D, S, T, ST
Back Slider: Blank
Cursor: 3 hairlines


Veb Mantissa Mono Rietz 1731 541

ISRM 09.01.12.105
Veb Mantissa Mono Rietz 1731 541
Made in DDR/Germany
Front Scale
L, K, A [ B, CI, C ] D, S, T, ST
Back: Blank
Donated by David Hecht of Alexandria, Virginia


Veb Mantissa Variant_II 1731-573/4

REF
Veb Mantissa Variant_II 1731-573/4
Made in DDR/Germany
Front Scale
ST, T, K, A [ B, CI, C ] D, P, S
Back Scale
25cm, L, DF [ CF, CIF,, C ] D, LL1, LL2, LL3
Archive - Scan by Steve Seale Collection, Nashville, Tennessee.


Veb Mantissa Erdgas-verbrennung rechenschieber
Natural gas combustion Slide Rule

REF
Veb Mantissa Erdgas-verbrennung rechenschieber
Made in DDR/Germany for Freiberg Fuel Institute (1969)
Note: This slide rule has specialized scaled dealing with volume, flow rates, pressure and specific gravity relative to the natural gas industry.
Front Scale:
1:g[kg/mn3], 2, 3, 4 [ 5, 6, 7, 8 ] 9, 10, 11, 12
Back Scale:
1, 2, 3 [ 4, 5 ] 6, 7, 8
Archive - Scan by Steve Seale Collection, Nashville, Tennessee.


Veb Mantissa Feutron Klima-Rechenstab 1802
Climate and Humidity Slide Rule

REF
Veb Mantissa Feutron Klima-Rechenstab 1802
Made in DDR/Germany by VEB Manyissa for Feutron, Greiz, Germany (c1971)
Note: This slide rule has specialized scaled dealing with Climate And Humidity.
Front Scale:
Wasserdampfgehalt (g/kg), Taupunkttemperatur (&dec;C) [ Trockenthermometer, Gesamtdruck (760 Torr), absolute Luftfeuchte (g/m3) Feuchtthermometer (&dec;C), Warmeinheit (kcal/kg) ]
Back Scale:
Wasserdampfgehalt (g/m3), Warmeinheit (kcal/kg) [ Lufttemperatur (&dec;C), Saettigungsdampfdruck (Torr) ] Partialdampfdruck (Torr), Wasserdampfanteil (%)
Archive - Scan by Steve Seale Collection, Nashville, Tennessee.

Gebr. Wichmann (Wichmann Brothers)



REF Gebr, Wichmann 431
Gebr. Wichmann 431 c1900
Made in Berlin, Germany by Wichmann Brothers - Paper composite with brass chisel cursor
Front Scale
A [ B, C ] D
Back: Blank
Archive - Ed Chamberlain Collection


REF Gebr. Wichmann 466
Gebr. Wichmann 466 c1900
Made in Berlin, Germany by Wichmann Brothers - Paper composite with brass chisel cursor
Front Scale
A [ B, C ] D
Back: Blank
Archive - Ed Chamberlain Collection


REF Gebr. Wichmann 1327-1/2
Gebr. Wichmann 1327-1/2
Made in Germany by Gebr. Wichmann m.b.h. (Wichmann Brothers)
Front Scale
A [ B, C ] D
Archive - Herman van Herwijnen's SR Catalogue


REF Wichmann 4428
Gebr. Wichmann 4428
Made in Germany by Gebr. Wichmann m.b.h. (Wichmann Brothers)
Front Scale
A [ B, C ] D
Back scale: 27.2cm [S, L, T ] 10.75in
Archive - Scan provided by Mark D. Sutton

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