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Keuffel & Esser 4181-1 Slide Ruler with Leather Case | Collectible

This Keuffel & Esser 4181-1 slide ruler comes with its leather case and is offered in used condition. It’s suitable for collectors of vintage calculation tools, educational display, or anyone interested in classic engineering and drafting instruments. Free shipping is included with the purchase. Details about the slide rule’s markings, scale types, materials, and any cosmetic wear are not provided here—check the listing for details. Review the photos and description in the listing to confirm what’s included and the exact condition before buying.

Keuffel & Esser 4181-1 Slide Ruler with Leather Case | Collectible
USD 59.99
Condition: see listing
LocationBemidji US
ShippingFree shipping (check listing for details)
Seller muskiestrike
100.0% positive · 1237 feedback
ListingFixedPrice · Active
Start time2025-11-14T05:23:25.000Z
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Keuffel & Esser 4181-1 Slide Ruler with Leather Case | Collectible Specs
BrandKeuffel & Esser Co.
Model No.4181-1
Country of OriginUnited States
CaseLeather
Listing details

Very nice Keuffel & Esser slide 4181-1 with original leather case. Inside lip of case has name written in. Overall good condition. Please see photos. Thanks for viewing!