{"product_id":"vintage-1928-keystone-solid-copper-adjustable-parallel-rule-bevel-protractor","title":"Vintage 1928 Keystone Solid Copper Adjustable Parallel Rule Bevel Protractor","description":" \u003cp data-path-to-node=\"4\"\u003e\u003cspan style=\"font-size: 12pt;\"\u003e\u003cstrong\u003e\u003ccode data-path-to-node=\"4\" data-index-in-node=\"6\"\u003eVintage 1928 Keystone Solid Copper Adjustable Parallel Rule Bevel Protractor\u003c\/code\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,0\"\u003e\u003cb data-path-to-node=\"11,0\" data-index-in-node=\"0\"\u003eVintage 1928 Keystone Solid Copper Adjustable Parallel Rule \u0026amp; Bevel Protractor\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,1\"\u003eUp for sale is a rare vintage 1928 Keystone adjustable folding parallel rule and protractor layout gauge, crafted from \u003cb data-path-to-node=\"11,1\" data-index-in-node=\"119\"\u003esolid copper\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,2\"\u003e\u003cb data-path-to-node=\"11,2\" data-index-in-node=\"0\"\u003eMarkings \u0026amp; Details:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"11,3\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,3,0,0\"\u003e\u003cb data-path-to-node=\"11,3,0,0\" data-index-in-node=\"0\"\u003ePatent:\u003c\/b\u003e Stamped \u003ci data-path-to-node=\"11,3,0,0\" data-index-in-node=\"16\"\u003e\"U.S. PAT. 1690882\"\u003c\/i\u003e (Patented Nov. 1928)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,3,1,0\"\u003e\u003cb data-path-to-node=\"11,3,1,0\" data-index-in-node=\"0\"\u003eOrigin Stamps:\u003c\/b\u003e Stamped \u003ci data-path-to-node=\"11,3,1,0\" data-index-in-node=\"23\"\u003e\"ST. PAUL, MINN. MADE IN U.S.A.\"\u003c\/i\u003e on the protractor dial disc and \u003ci data-path-to-node=\"11,3,1,0\" data-index-in-node=\"88\"\u003e\"KEYSTONE ADJ. CORP. \/ PITTSBURGH, PA.\"\u003c\/i\u003e on the reverse hub.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,3,2,0\"\u003e\u003cb data-path-to-node=\"11,3,2,0\" data-index-in-node=\"0\"\u003eFeatures:\u003c\/b\u003e Features \u003cspan class=\"math-inline\" data-math=\"0^\\circ–360^\\circ\" data-index-in-node=\"19\"\u003e$0^\\circ–360^\\circ$\u003c\/span\u003e angle graduations around the center pivot wheel, ruler graduations along the arms, and precision pinholes for drafting arcs or scribing parallel lines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"11,4\"\u003e\u003cb data-path-to-node=\"11,4\" data-index-in-node=\"0\"\u003eCondition:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,4\"\u003eSolid vintage working condition. Center pivot joint turns and holds angle positions properly. Displays a rich, authentic natural copper age patina with light shop wear as pictured. Measures ~4.5\" long when folded.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,5\"\u003e\u003ci data-path-to-node=\"11,5\" data-index-in-node=\"0\"\u003ePlease review all high-resolution photos for exact cosmetic condition. Ships securely packaged. Selling as pictured 090526 gp\u003c\/i\u003e\u003c\/p\u003e\u003cmeta name=\"keywords\" content=\"Keystone Adjustable Corp, solid copper rule, 1928 patent rule, vintage protractor gauge, bevel protractor, parallel rule, St Paul Minn tool, Pittsburgh PA tool, drafting layout gauge, antique copper tool\"\u003e\u003cmeta name=\"description\" content=\"Vintage 1928 Keystone solid copper adjustable parallel rule \u0026amp; protractor gauge (US Pat 1,690,882). St. Paul, MN \u0026amp; Pittsburgh, PA markings. Rare copper layout to\"\u003e","brand":"cyclewarehouse.online","offers":[{"title":"Default Title","offer_id":47625905602722,"sku":"copper pittsburgh protractor 090526","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0335\/9824\/2861\/files\/2cbb118a-7ee9-469b-b76c-c21ab78ec8d5.jpg?v=1788631109","url":"https:\/\/cyclewarehouse.online\/products\/vintage-1928-keystone-solid-copper-adjustable-parallel-rule-bevel-protractor","provider":"cyclewarehouse.online","version":"1.0","type":"link"}