{"product_id":"ster-sterling-bent-gooseneck-square-shank-hallmark-stamps-3-sizes","title":"STER (Sterling) Bent Square Shank Hallmark Stamps-3 Sizes","description":"\u003cp\u003eThese bent square shank \u003cstrong\u003eSTER\u003c\/strong\u003e hallmark stamps are made of precision-cut, heat-treated tool steel and are used for marking silver alloys that are no less than 0.925% fine silver by weight. Each stamp imprints the letters \u003cem\u003eSTER\u003c\/em\u003e, an abbreviation for Sterling Silver. The bent shank design — also known as a gooseneck stamp — allows for marking the inside of rings and other recessed areas that straight stamps cannot reach. These stamps produce clean, sunken impressions on precious metals. Made in the USA and Germany.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eMeasurement refers to the height of the impression, not the width.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eImprints \u003cstrong\u003eSTER\u003c\/strong\u003e — the standard abbreviation for Sterling Silver\u003c\/li\u003e\n\u003cli\u003eBent (gooseneck) shank design for marking the inside of rings and curved surfaces\u003c\/li\u003e\n\u003cli\u003eSquare shank for secure grip in stamp-holding tools\u003c\/li\u003e\n\u003cli\u003ePrecision-cut, heat-treated tool steel construction\u003c\/li\u003e\n\u003cli\u003eProduces sunken impressions on precious metals\u003c\/li\u003e\n\u003cli\u003eMade in the USA and Germany\u003c\/li\u003e\n\u003cli\u003eAvailable in three impression heights\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHeat-treated tool steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Style\u003c\/th\u003e\n\u003ctd\u003eBent square shank (gooseneck)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpression Type\u003c\/th\u003e\n\u003ctd\u003eSunken (recessed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMark Imprinted\u003c\/th\u003e\n\u003ctd\u003eSTER (Sterling Silver hallmark)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eUSA and Germany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eAvailable Options\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eImpression Height\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e155.301\u003c\/td\u003e\n\u003ctd\u003e1.00 mm (1\/25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e155.302\u003c\/td\u003e\n\u003ctd\u003e0.80 mm (1\/32\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e155.303\u003c\/td\u003e\n\u003ctd\u003e0.60 mm (1\/45\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"1.00mm","offer_id":47551684739286,"sku":"155.301","price":33.0,"currency_code":"USD","in_stock":false},{"title":"0.80mm","offer_id":47551684772054,"sku":"155.302","price":33.0,"currency_code":"USD","in_stock":false},{"title":"0.60mm","offer_id":47551684804822,"sku":"155.303","price":33.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/ster-sterling-bent-square-shank-hallmark-stamps-3-sizes-otto-frei.jpg?v=1719959068","url":"https:\/\/www.ottofrei.com\/products\/ster-sterling-bent-gooseneck-square-shank-hallmark-stamps-3-sizes","provider":"Otto Frei","version":"1.0","type":"link"}