| Name and Model Number | Faber Castell 3/11 Static |
| Country of Origin | Germany |
| Date of Manufacture | 1938 |
| Front Scales | cm / A = B CI 2 specialised scales C = D \ K |
| Back Scales | Tables |
| Scale Length | 25.0 cm |
| Type of Rule | Slide Rule |
| Construction | Plastic on Mahogany |
| Area of Use | Concrete and Steel structure calculations |
| Comment | |
| Rarity | RRR |
| Donor | Collection of Dave Nichols |
| Match Number | 95 |
| 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. |