{"product_id":"825-hallmark-stamp-bent-gooseneck-shank-0-75mm-impression","title":"825 Bent Square Shank Hallmark Stamp-1\/32\" (0.75mm) Impression Height","description":"\u003cp\u003eThis bent square shank \u003cstrong\u003e825 hallmark stamp\u003c\/strong\u003e is precision cut from heat-treated tool steel and designed for marking precious metals with a clean, sunken impression. The bent shank — also known as a gooseneck design — makes this stamp ideal for reaching the inside of rings and other curved or recessed surfaces where a straight stamp cannot reach.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003e825 hallmark designation\u003c\/strong\u003e indicates that the metal contains at least 82.5% pure gold, equivalent to 19 karat gold. Stamping with the correct hallmark is an essential step in accurately representing the metal content of finished jewelry pieces.\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\u003eBent square shank (gooseneck) design for marking inside rings and recessed areas\u003c\/li\u003e\n\u003cli\u003ePrecision cut heat-treated tool steel construction\u003c\/li\u003e\n\u003cli\u003eCreates sunken hallmark impressions on precious metals\u003c\/li\u003e\n\u003cli\u003eDisplays the 825 hallmark — denoting at least 82.5% pure gold (19K)\u003c\/li\u003e\n\u003cli\u003eMade in the USA and Germany\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eImpression Height\u003c\/th\u003e\n\u003ctd\u003e1\/32\" (0.75mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Type\u003c\/th\u003e\n\u003ctd\u003eBent square shank (gooseneck)\u003c\/td\u003e\n\u003c\/tr\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\u003eHallmark Value\u003c\/th\u003e\n\u003ctd\u003e825 (minimum 82.5% pure gold \/ 19K)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eMade in the USA and Germany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe impression measurement of 1\/32\" (0.75mm) refers to the \u003cem\u003eheight\u003c\/em\u003e of the stamped impression, not the width.\u003c\/li\u003e\n\u003cli\u003eThis product contains materials subject to California Proposition 65 warnings.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43584834928854,"sku":"155.922","price":20.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/825-bent-square-shank-hallmark-stamp-132-0-75mm-impression-height-otto-frei.jpg?v=1719955897","url":"https:\/\/www.ottofrei.com\/products\/825-hallmark-stamp-bent-gooseneck-shank-0-75mm-impression","provider":"Otto Frei","version":"1.0","type":"link"}