In ancient times, silver was extracted from local lead, a wasteful and toxic undertaking. As for jewellery alloys based on precious metals, Japan has never practiced any government-controlled system for testing, assaying and hallmarking jewellery items. Followers 2. Hallmark Fineness Certification of Precious Metal Wares : Japan Mint Kansai and Kanto. Gold hallmarks. Gold hallmarks originated to show the purity of gold in a piece of gold jewellery and included the mark of the assaying office that certified the purity as well as the fineness or caratage of the gold. A new type 2 standardised CCM mark: The type 1 or traditional CCM conformity mark uses a different shield shape for each precious metal. pre-1920s Japanese silver hallmarks - SMP Silver Salon … 30 Dicembre 1970 n. 1496) introduced new hallmarks for silver and precious metals. There are mainly 2 cases : either the kiln or the painter is well known, he will be using in this case a specific marking which can be identified. A mark made by stencil is a much later way … Followers 2. Antique Japanese Hallmarked - $127.50 . Tardy lists very few (late) Japanese hallmarks, mostly the fineness (e.g., "950"). Accepting requests from manufacturers or distributors of precious metal wares, the Mint examines the fineness of precious metal wares and certifies the fineness of such wares by stamping the following marks on all wares that pass this examination. Smithsonian Libraries and Archives, Natural History Building, 10 th St. and Constitution Ave. NW, Washington DC, 20560 Gunjinantiques. A helpful dating tip in the labyrinth of Japanese marks is it is generally accepted that marks that include "Dai Nippon" in Japanese characters, on the whole, date to the Meiji (1868 to 1912) period, reflecting the greatly increased nationalism of the time. Prior to the that, during the Meiji and Taisho periods much Japanese silver was either unmarked or carried the Kanji for “Pure Silver”. Japanese metal - Wikipedia International convention marks - Assay Office TRADEMARKS ON BASE-METALTABLEWARE Japan Jewelry Hallmarks - Starco Jewellers Translated [JA] Close. hallmarks