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Vintage Keuffel & Esser K&E Slide Rule w/ Leather Case – Engineering Collectible
Vintage Keuffel & Esser (K&E) slide rule, a classic piece of American engineering and mathematical history. Believed to date to approximately the 1940s era, making it an excellent collectible for engineers, mathematicians, scientists, educators, or vintage instrument enthusiasts.
Details:
- Brand: Keuffel & Esser Co. (K&E)
- Precision slide rule with multiple calculation scales
- Patent marking: 2,086,502
- Includes vintage leather carrying case
- Excellent display or engineering-history collectible
Condition:
Pre-owned vintage condition with age-appropriate wear. The slide rule, scales, cursor, and hardware appear well preserved based on the photos. Please reference all photos closely for exact cosmetic condition, markings, and completeness.
A distinctive piece from the era when engineers, architects, scientists, and mathematicians relied on precision mechanical instruments before electronic calculators became standard.
Great addition to a vintage engineering, drafting, scientific instrument, or K&E collection.
