| Faber-Castell 360 (variation 1) | |
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Back |
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Front without slide |
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Back of the slide |
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Box |
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Cross section |
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| Length | 26 cm |
| Number of scales | 10 |
| Country of origin | United Kingdom |
| Country of manufacturing | Germany |
| Year of manufacturing | Somewhere between 1900 and 1908 |
| Status of the slide rule | Normal signs of use |
| Material of the slide rule | Celluloid on wood |
| Status of the box | Near mint |
| Status of the manual | None |
| Collection number | 109 |
| Further comments | This is an very old English version
of the 360. On the slide rule itself there is no type number, but
the box has a label "360". The
2 sides of the rule are plain boxwood, no celluloid layer on them. There
is no mark on the back with the year of manufacturing, but looking at
the typeface used on the box and the slide rule, it must be considerably
older than 1920. The box refers to a Award from 1900, so it must be
after 1900. There are no re-inforcement rods in the wood of the slide rule. The FC patent that describes this inventions is 206428 from 1907. This suggests that this version of the 260 was made between 1900 and 1907. Also the bottom of the stator is not split; the FC patent for a split bottom with springs is from 1908. |
| Faber-Castell 360 (variation 2) | |
| Front | |
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| Back | |
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| Front without slide | |
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| Back of the slide | |
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| Box | |
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| The 360 in an old Faber-Castell catalogue | |
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| Length | 28 cm (2 cm longer than variation 1) |
| Number of scales | 9 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | 1925 |
| Status of the slide rule | Light damage |
| Material of the slide rule | Celluloid on wood |
| Status of the box | Light damage |
| Status of the manual | None. |
| Collection number | 64 |
| Further comments | There are significant modifications
of the 360 since the previous version. It is 2 cm longer, the layout of
the scales changed. No more centimeter scale in the well. The cursor is
now more square. On the box is written with pencil: "Angeschaft in Mai 1925. Georg Wallisser". |
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Faber-Castell 360 (variation 3) |
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| Front without slide | |
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| Back | |
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| Back of slide | |
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| Bottom | |
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| Box | |
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| Length | 29 cm (1 cm longer than variation 2) |
| Number of scales | 10 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | 1934 |
| Status of the slide rule | Minimal signs of use |
| Material of the slide rule | Celluloid on wood |
| Status of the box | Minimal signs of use |
| Status of the manual | None. |
| Collection number | 126 |
| Further comments | There are again differences with
variation 2: different typeface, a wider cursor, 1cm more length,
extended scales, a different bottom scale, no cm scale in the well
anymore, some additional gauge marks. The box has a label saying: Kutscher&Gehr Mal- & Zeichenbedarf, Moritzplatz, Augsburg. |
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Faber-Castell 360 (variation 4) |
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| Front | |
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| Front without slide | |
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| Back | |
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| Back of slide | |
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| Bottom | |
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| Box | |
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| Length | 29 cm |
| Number of scales | 10 |
| Country of origin | Canada |
| Country of manufacturing | Germany |
| Year of manufacturing | 1934 |
| Status of the slide rule | Minimal signs of use (cursor glass is missing) |
| Material of the slide rule | Celluloid on wood |
| Status of the box | Minimal signs of use |
| Status of the manual | None. |
| Collection number | 161 |
| Further comments | Although this version is from the
same year as variation 3, there are again interesting differences: It is an English version with an inch-scale on the top and English tables on the back. It has 5 adjustment screws in the bottom to adjust the width of the well. This is very peculiar as this screw mechanism is mainly used with the long 20" slide rules. I have never seen it yet with a 10" slide rule.
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