Vintage 1947 Keuffel and Esser Slide Rule w/ Box, Manual and Green Leather Case $10.67 USD Sold on: 2014-Jun-02 Marketplace: eBay 1 Treasure 0 Trash 100% Detail: Here we have this Vintage 1947 Keuffel and Esser Slide Rule No. 68-1287 w/ Box, Manual and Green Leather Case. The box has edge and surface wear the slide rule and case are between very good and excel... More Relevance Historical Items
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