| Faber-Castell 51/87 Rietz | |
|
Front |
|
|
|
|
|
Front without slide |
|
|
|
|
|
Back of the slide |
|
|
|
|
|
Box |
|
|
|
|
| Length | 30 cm |
| Number of scales | 10 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | |
| Status of the slide rule | Normal signs of use |
| Material of the slide rule | Celluloid on wood |
| Status of the box | Normal signs of use |
| Status of the manual | None |
| Collection number | 138 |
| Further comments | This is one of the inexpensive school
slide rules that Faber-Castell made in years before WWII. It is one of
the more complex ones.
Interesting to see that the reverse C/D scale is named "K" instead of teh usual "CI". On the back of the box is a label of the shop that sold the slide rule: L. Morsbach Bürobedarf-Geschenkartikel, Linkgasse 5, Solingen. The price was then 10.75 Deutschmark.
|
