The Netherlands Slide Rules

(Manufacturers. Distrubutors and Countries not found in their own gallery) This gallery is dedicated to Dutch slide rules and manufacturers located within the Netherlands (Holland). Many are re-branded slide rules made in Germany or Japan.

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Manufacturers/Brands Represented in this gallery:
Ahrend
Kent
Matthijssen
Muiderkring
Philips
RiSta - Richel-Stam
Rynja
Wolters-Noordhoff

Also visit the Dutch ALRO slide rule and Technical Disk Gallery.

Kring Historische Rekeninstrumenten (Dutch Circle for Historical Calculating Instruments), formerly the Dutch Circle of Slide Rule Collectors. KRING was founded in 1991, The Dutch Circle has grown into an informal group of about 60 collectors, many of which are influential authors and may be seen in the ISRM Slide Rule Who's Who gallery.

Ahrend

The N.V. Wed. J. Ahrend & Zoon (The Widow J. Ahrend & Son, Ltd) is a Dutch office supply house founded nn 1896 by 18-year-old Jacobus Ahrend. He first started an office stationery shop at Singel 24 in Amsterdam, under his mother's name. Ahrend soon expanded the range of goods carried to include drawing tables, drawing requisites, collotype machines (a precursor of the photocopier) and water levels. In the 1920s, Ahrend started to sell office furniture and soon saw a rapid increase in the numbers sold. The initial furniture was all made of wood, but it was not long before steel furniture was added to the range. Steel furniture was later banned because of WWII. Ahrend celebrated its centenary in 1996, and in that year it was given permission to carry the predicate 'Koninklijk' (Royal). Ahrend were no instrument makers, but re-sellers as can be seen below where rebranded slide rules were made in Japan and Germany. In 1957 Ahrend opened their own workshop where theodolites, levels, binoculars, planimeters, microscopes and nautical equipment could be repaired, tested, and adjusted.3 That workshop was thus only for maintenance, not to produce new instruments. In 1962 Ahrend bought shares from instrumentmaker De Koning, a firm that actually fabricated geodetic instruments. Ahrend was the main supplier of survey instruments to Dutch governmental departments. Already in 1922 the instruments supplied by them were used by the topograhical service (both in the Netherlands and in the former colony Indonesia), the survey department of the ministry of transport and public works, the Engineering Corps of the army, the state mines in the Province of Limburg and the public works department of Amsterdam.


Ahrend Sun Hemmi P280 (Ahrend 435660) ISRM 09.01.12.33	Ahrend Sun Hemmi P280 (Ahrend 435660) Made in Japan by Hemmi for Dutch Company Ahrend - c1973 Front Scale T Cot, K, A [ B, CI, C ] D, L, S Cos, ST ST Back Scale [ LL1, LL2, LL3 ] Donated by David Hecht, Alexandria, VA
Ahrend Hemmi P281 REF	Ahrend Hemmi P281 - Open simplex Made in Japan by Sun Hemmi for Dutch Company Ahrend Front Scale T Cot, K, A [ B, CI, C ] D, L, S Cos, ST Back Slider [ LL1, LL2, LL3] Archive - Herman van Herwijnen's SR Catalogue
Ahrend 435660 Hemmi P283 ISRM 15.02.12.16	Ahrend 435660 Hemmi P283 - Open simplex Made in Japan by Sun Hemmi for Dutch Company Ahrend Front Scale K, A [ B, CI, C ] D, L, T Cot, S Cos Back Slider [ LL1, LL2, LL3]
Ahrend Hemmi 642T REF	Ahrend Hemmi 642T - Open simplex Made in Japan by Sun Hemmi for Dutch Company Ahrend Front Scale 27cm // K, A [ B, BI, CI, C ] D, DI, L Back Slider [ T2, T1, ST, S] Archive - Herman van Herwijnen's SR Catalogue
REF Ahrend 649 Schola	Ahrend 649 Schola Made in Germany for Dutch Company Ahrend Front Scale A [ B, C ] D Archive - Herman van Herwijnen's SR Catalogue
REF Ahrend 652 Rietz	Ahrend 652 Rietz Made in Germany for Dutch Company Ahrend Front Scale 26cm // A [ B, C ] D \|\| 10in Back Slider [S, ST, T] Archive - Herman van Herwijnen's SR Catalogue
REF Ahrend 654 Electro	Ahrend 654 Electro Made in Germany for Dutch Company Ahrend Front Scale: 26cm // A [ B, C ] D \|\| 10in Well: Dynamo, Volt Back Slider: [S, ST, T] Archive - Herman van Herwijnen's SR Catalogue
REF Ahrend 690 Electro	Ahrend 690 Electro Made in Germany (same as Aristo 89) for Dutch Company Ahrend Front Scale: 13cm // K, A [ B, CI, C ] D, L Back Slider: [S, ST, T] Archive - Herman van Herwijnen's SR Catalogue
REF Ahrend 696	Ahrend 654 Made in Germany (same as Aristo 915) for Dutch Company Ahrend Front Scale: 28cm // K, A [ B, BI, CI, C ] D, LL3, LL2, D/M, V Back Slider: [S, ST, L, T] Archive - Herman van Herwijnen's SR Catalogue
REF Ahrend 701 Technica	Ahrend 701 Technica Made in Germany (same as Aristo 929) for Dutch Company Ahrend Front Scale: 25cm, P, K, A [ S, T, ST, S ] D, DI, 10in Back Scale: K, DF [CF, CIF, CI, C ] D, L Archive - Herman van Herwijnen's SR Catalogue
REF Ahrend Construction Disk	Ahrend Construction Disk Made in Netherlands by Ahrend Archive - Herman van Herwijnen's SR Catalogue

Kent

KENT was a Dutch retailer who sold rebranded basic/school type plastic slide rules that were made by Uchida Yoko Co. in Japan.


Kent Pocket Generic Slide Rule ISRM 20.04.01.198	Kent Pocket Generic Slide Rule Made in Japan, Uchida Yoko Co., for Dutch Company Kent Front Scale A [ B, CI, C ] D, K Back: [ blank] Gift of Philip Stanley Collection
Kent 309 Student ISRM 19.10.26.03 (Note: Tagged as 19.10.27.03)	Kent 309 Student Made in Japan, Uchida Yoko Co., for Dutch Company Kent Front Scale L, K, A [ B, CI, C ] D, S, ST, T Back Scale 25cm [ blank] 10 inch Gift of Philip Rodley, Upperhutt, New Zealand
Kent 7153LL S061	Kent 7153LL - Open simplex Made in Japan, Uchida Yoko Co., for Dutch Company Kent Front Scale L, K, A [ B, CI, C ] D, S, ST, T Back Scale 25cm [ S, LL2, LL3] 10 inch
Kent 7300LL S433	Kent 7300LL - Open simplex Made in Japan, Uchida Yoko Co., for Dutch Company Kent Front Scale T Cot, K, A [ B, CI, C ] D, S Cos, ST, L Back Scale [ LL1, LL2, LL3]

Matthijssen


HSRC3469 Systeem Matthijssen, Hengelo Auteursrecht Voorbehouden	Systeem Matthijssen, Hengelo Auteursrecht Voorbehouden Slide rule of bakelite/celluloid 550x88x11 mm Archive - Herman van Herwijnen's SR Catalogue
HSRC3467 Systeem Matthijssen, Hengelo Auteursrecht Voorbehouden	Systeem Matthijssen, Hengelo Auteursrecht Voorbehouden Slide rule of bakelite/celluloid 440x88x11 mm Archive - Herman van Herwijnen's SR Catalogue
HSRC3517 Systeem Matthijssen, Hengelo Auteursrecht Voorbehouden	Systeem Matthijssen, Hengelo Auteursrecht Voorbehouden Slide rule of wood/celluloid 550x110x120 mm Archive - Herman van Herwijnen's SR Catalogue Detail
HSRC3468 Systeem Matthijssen, Hengelo Reproductierecht Voorbehouden	Systeem Matthijssen, Hengelo Reproductierecht Voorbehouden Slide rule of bakelite/celluloid 550x89x12 mm Archive - Herman van Herwijnen's SR Catalogue

de Muiderkring NV

Muiderkring was a publishing company specialising in electronics. They published books, magazines and also sold two slide rules. The designs in their books and magazines generally used the components produced by the Dutch Amroh company. Both firms were located in Muiden, the Netherlands.


Muiderkring (IWA 51903) for Radio Technicians and Amatuer Radio.	Muiderkring (IWA 51903) for Radio Technicians and Amatuer Radio. Made by IWA Copyright By de Muiderkring NV Front Scale: 14cm A [ B, Capacitance, Inductance, C ] Frequency, Wavelength, 5.5inch Back Scake: L2/L1, U2/U1, db, P2/P1, X, Resistor Color Code Table [ sin cos, lg, tg cot ] Scan of slide rule and manual donated by John Kijnen, the Netherlands.

Philips Slide Charts

P. RYNJA (Rijnja), Amsterdam

Regullersgracht 130-132, Amsterdam C.
Rijnja, founded in 1892 in Amsterdam was the manufacturer of the so-called slide bar a form of slide chart.


HSRC2321 Rynja Balken en Plafondhangers	Rynja Balken en Plafondhangers Designed and printed by P. Rynja, Amsterdam Constructed in accordance with the Standards rules by J.Th. van Gerven. Log/tech slide rule of cardboard/celluloid 144x26x2 mm Front Scales: 1 [ 2 3 ] 4 Back Scales: [ 5 6 ] Archive - Herman van Herwijnen's SR Catalogue
HSRC3097 Rynja IJzeren LiggersProfielen (Steel Beam Profile)	Rynja IJzeren LiggersProfielen (Steel Beam Profile)Rynja Balken en Plafondhangers Designed and printed by P. Rynja, Amsterdam Steel beams slide rule of cardboard + celluloid 218x44x3 mm Archive - Herman van Herwijnen's SR Catalogue
HSRC2855 Rynja Seehase Patent Generic Slide Rule	Rynja Seehase Patent Generic Slide Rule Designed and printed by P. Rynja, Amsterdam Generic slide rule of cardboard/celluloid 145x26x4 mm Front Scales: A [ B, C ] D Archive - Herman van Herwijnen's SR Catalogue
HSRC3095 Rynja Strackee Beton (Concrete) Slide Rule	Rynja Strackee Beton (Concrete) Slide Rule Designed and printed by P. Rynja, Amsterdam Concrete slide rule of brass 219x44x3 mm Archive - Herman van Herwijnen's SR Catalogue

Wolters-Noordhoff


REF Wolters-Noordhoff Rietz 87	Wolters-Noordhoff Rietz 87 Made in Japan (Fuji) for Dutch Company Front Scale K, A [ B, CI, C ] D, L Back Slide 0-15cm, 15-0cm [ S, T, T1 ] Archive - Herman van Herwijnen's SR Catalogue
S062 Wolters-Noordhoff FJ102	Wolters-Noordhoff FJ102 - Simplex Made in Japan (Fuji) for Dutch Company Front Scale L, DF [ CF, CIF, CI, C ] D, A, K Back Slide 25cm [ S, ST, T1, T2 ] Cursor: 3 hairlines
REF Wolters-Noordhoff 112	Wolters-Noordhoff 112 Made in Japan by Fuji Front Scale L, DF [ CF, CIF, CI C ] D, A, K Cursor: 3 hairlines: PS, KW, C Back Scale 25cm [ S Cos, ST , T1 Cot1, T2 Cot2 ] Archive - Rod Lovette Collection
REF Wolters-Noordhoff JE650	Wolters-Noordhoff JE650 - Duplex Made in Germany for Dutch Company Front Scale A, DF [ CF, CIF, CI, C ] D, K Back Scale L, T1 Cot1, T2 Cot2 [ S', CI, C ] D, S Cos, ST Cursor: 3 hairlines Archive - Herman van Herwijnen's SR Catalogue HSRC
S063 Wolters-Noordhoff 1200	Wolters-Noordhoff 1200 - Duplex Made in DDR/Germany Front Scale T1 Cot1, T2 Cot2, A [ B, BI, CI C ] D, P, S Cos, ST Back Scale LL1, LL2, LL3, DF [ CF, CIF, CI C ] D, L, K Cursor: 3 hairlines: PS, KW, C

Copyright © 2003-2018 International Slide Rule Museum
Noordhoff 1200 Wolters-Noordhoff 1200 - Duplex
Made in DDR/Germany
Front Scale
T1 Cot1, T2 Cot2, A [ B, BI, CI C ] D, P, S Cos, ST
Back Scale
LL1, LL2, LL3, DF [ CF, CIF, CI C ] D, L, K
Cursor: 3 hairlines: PS, KW, C


2129	Philips Birth disc Medical disc of plastic 90x1.2 mm
5250	Philips Electrical characteristics of photo and projection lamps Photography slide chart of plastic 160x85x1.5 mm
2771	Philips Laschstaaf Technical disc of cardboard 150x125x1 mm
5416	Philips Lighting Technical disc of cardboard 160x1 mm
5385	Philips Miniwatt Electrical slide chart of plastic 180x57x2.8 mm
5368	Philips Resistors and Capacitors Electrical slide chart of plastic, 48x180x3 mm
5661	Philips Strahlung Meter (Prototype) Radioactivity slide rule