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The old hallmarks were as unique as today's logos, and disputes often arose when one company copied another's stamp. [citation needed] "The words "silver" and "sterling silver" describe a product that contains 92.5% pure silver. Silver products sometimes may be marked 925, which means that 925 parts per thousand are pure silver.
Hallmarks are a guarantee of certain purity or fineness of the metal, as determined by official metal (assay) testing. Hallmarks include information not only about the precious metal and fineness, but the country from which the item was tested and marked. Some hallmarks can reveal even more information, e.g. the assay office, size of the object ...
Napier Company (jewellery) The Napier Company (1922-present). Flask, 1925-1930. Sterling silver and cork, 9 5/8 x 4 1/2 x 1 3/16in. (24.4 x 11.4 x 3cm). Brooklyn Museum, Modernism Benefit Fund. Napier necklace with tag. The Napier Company is an American jewelry manufacturing company, and was one of the first modern corporations in the United ...
For silver, you’ll find 925, 800, silver or sterling. Here are a few key takeaways to help you interpret some jewelry stamps: Sterling silver with a 925 stamp is 92.5% silver.
Sterling silver. Sterling silver is an alloy composed by weight of 92.5% silver and 7.5% other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925. Fine silver, which is 99.9% pure silver, is relatively soft, so silver is usually alloyed with copper to increase its hardness and strength.
Other hallmarks include a hammer, and three "X" marks. William B. Kerr & Co. newark, New Jersey Ca. 1880s - 1927 Well regarded for Art Nouveau jewelry, holloware and vanity items. Absorbed into Gorham in 1927.