Antique Keuffel & Esser K&E Slide Rule w/ Leather Case PAT 1900 1908 Scientific
USD 15.99 USD
Specifications
| Country Of Origin | United States |
| Maker | Keuffel Esser Co. |
| Original/Reproduction | Original |
| Time Period Manufactured | 1908-1920s |
This is a remarkable antique Keuffel & Esser (K&E) slide rule, complete with its original brown leather case. The slide rule itself is made of a cream-colored material (likely celluloid over wood) with clear black and red markings for various scales including K, A, B, S, T, CI, D, L.
