| Name and Model Number | Wichmann |
| Country of Origin | Germany? |
| Date of Manufacture | |
| Front Scales | A/B,C/D |
| Back Scales | None |
| Scale Length | 125 mm |
| Type of Rule | Slide Rule |
| Construction | Card and steel |
| Area of Use | Generic |
| Comment | |
| Rarity | RRR |
| Donor | Collection of Colin Barnes |
| Match Number | 85 |
| Thumbnail |  |
| RR | = Rare -- 1 of 25 collectors has one; it may take a year to find an example in the marketplace. |
| RRR | = Very rare -- only very few known to collectors; may take several years before one comes up for sale. |
| RRRR | = Extremely rare -- a museum piece; unlikely that an example will ever come up for sale. |