{"product_id":"antique-machinist-made-semi-circuler-protractor-with-hand-stamped-numbers","title":"Antique Machinist Made Semi-circuler Protractor with Hand-stamped Numbers","description":"\u003cp\u003eI've rarely met a handmade tool I didn't want to hold on to for at least a bit, and this is a great one. I believe machinist made, a semi-circular protractor, for use measuring angles for cutting, joining, etc. (Though also used as a drafting tool.) Hand-pressed type and etched angles, the metal I think is brass but with a super rich patina, showing a coppery-bronze. C. 1870s-80s would be my guess. \u003c\/p\u003e\n\u003cp\u003e 8\" w x 4\" t. Good condition, terrific rich patina, one small patch of oxidation and a bit of greening over the the \"60\" as shown. \u003c\/p\u003e","brand":"critical EYE Finds","offers":[{"title":"Default Title","offer_id":49010800754942,"sku":null,"price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/5022\/1382\/files\/IMG_5434_470e1ed5-2344-4291-a27f-2158719b33e3.jpg?v=1789574586","url":"https:\/\/www.criticaleyefinds.com\/products\/antique-machinist-made-semi-circuler-protractor-with-hand-stamped-numbers","provider":"critical EYE Finds","version":"1.0","type":"link"}