Keuffel & Esser 4013 Thacher Cylindrical Slide Rule, Vintage
This Keuffel & Esser 4013 Thacher cylindrical slide rule is a vintage calculating instrument offered in used condition. It may appeal to collectors of scientific instruments and slide rules in the Collectibles category. Free shipping is included with purchase. For specifics on included accessories, exact markings, functionality, cosmetic wear, or any defects, check the listing for details.
| Location | Portland US |
| Shipping | Free shipping (check listing for details) |
| Seller |
madeinusavintage
100.0% positive · 310 feedback
|
| Listing | FixedPrice · Active |
| Start time | 2026-03-14T15:58:01.000Z |
| Country of Origin | United States |
The Keuffel & Esser 4013 Thacher Cylindrical Slide Rule is a vintage calculating instrument produced in the United States. This unique tool falls under the category of collectibles and is particularly sought after by enthusiasts of slide rules. The cylindrical design of the instrument allows for precise calculations in engineering and mathematical applications. As a rare and valuable piece of American engineering history, this slide rule is a prized possession for collectors and hobbyists alike.
