Webfind jewelry makers marks and quickly identify silver and precious metals on brooches, pendants, bracelets, rings, earrings etc. Includes pictorial guides and initials marks. Webantique jewelry university has an extensive jewelry maker’s marks database to which new marks are added regularly. You can help build this database by sending in images (of. Webjewelry designers and manufacturers have their own unique maker's marks which are used to identify designer jewelry pieces. This massive database features an alphabetized list. Webdiscover the answer by searching through a comprehensive database of hundreds of jewellery maker's marks and assay marks, or by exploring an image database that.