{"product_id":"keuffel-esser-slide-rules-with-book-and-paramount-products-roto-rule","title":"Keuffel \u0026 Esser slide rules with book and Paramount Products Roto-Rule","description":"\u003cp\u003eVintage slide rule and rotary measuring device lot, including:\u003c\/p\u003e\n\u003cp\u003eKeuffel and Esser Co. N4053-3 slide rule with leather case, with ownership inscriptions by T. Gallagher, Tufts College (1935 graduation) with manual (1944 copyright, some tanning and foxing on the cover)\u003c\/p\u003e\n\u003cp\u003eKeuffel and Esser Co. Beginner's Slide Rule N4058W, well used\u003c\/p\u003e\n\u003cp\u003eThe Polyphase Slide Rule Self Teaching Manual by William E. Breckenridge, copyright 1924. Cover is well used and repaired.\u003c\/p\u003e\n\u003cp\u003eRoto-Rule Rotary Measuring Device by Paramount Products of Ft. Wayne, Ind., with original package\u003c\/p\u003e\n\u003cp\u003eCONDITION All are used, examine the photo.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis is a vintage item. It has been used and loved and it has a history. Please examine photos carefully and ask questions, as we are unable to accept returns or exchanges.\u003c\/em\u003e\u003c\/p\u003e","brand":"Peavey","offers":[{"title":"Default Title","offer_id":50805130395841,"sku":"ywn1792659508746","price":31.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0870\/2535\/2897\/files\/keuffel-esser-slide-rules-with-book-and-paramount-products-roto-rule_1.jpg?v=1792659519","url":"https:\/\/argyleknitfit.shop\/products\/keuffel-esser-slide-rules-with-book-and-paramount-products-roto-rule","provider":"My Store","version":"1.0","type":"link"}