Keuffel & Esser Co. 7 Inch Slide Rule Case Magnifier Green Leather 4181-1 1940s

Keuffel & Esser Co. 7 Inch Slide Rule with Case and Magnifier Green Leather Case 4181-1 1940s USA Made Condition: Pre-owned, good used condition. See photos Always open to reasonable offers! Bundle for the best deals! FYI all items come from a non-smoking but pet friendly home. Super fast shipping: We ship items within 48 hours of purchase!