| Faber-Castell 1/22 Business slide-rule | |
|
Front |
|
|
|
|
|
Back |
|
|
|
|
|
Front without slide |
|
|
|
|
|
Back of the slide |
|
 |
|
| Bottom | |
 |
|
| Box | |
|
|
|
| Length | 30 cm |
| Number of scales | 11 |
| Country of origin | UK |
| Country of manufacturing | Germany |
| Year of manufacturing | 1963 |
| 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 | 120 |
| Further comments | This is an English version of the
1/22. It is interesting to look at the differences with my ohter 1/22.
|
