PPC is a manufacturer's mark and stands for Princess Pride Creations. They registered their trademark name in 1955 in Providence, RI. This trademark has since expired.
PPC is a makers mark for Princess Pride Creations.
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Platinum
Early Swarovski Jewelry was marked SAL
The letters STGPPC stamped on jewelry refers to two separate items. STG is an abbreviation for sterling. PPC is the manufacturer of the piece. PPC stands for Princess Pride Creations.
The SC with an anchor symbol on jewelry stands for "Sterling Craft," which indicates the piece is made of sterling silver. Sterling silver has a high purity level of at least 92.5% silver, making it a valuable and durable material for jewelry.
375 is the marking for 9 carat gold. Usually vintage European will have this marking.
The 220 hallmark on jewelry means it is a commercial bronze alloy.
HMS is a company that specializes in 18k, 14k, 10k and platinum jewelry
PPC is a manufacturer's mark and stands for Princess Pride Creations. They registered their trademark name in 1955 in Providence, RI. This trademark has since expired.
The 833 marking on gold signifies that it is 833 parts pure out of 1000. Translated to karats this would be 20kt, a popular purity used in Portuguese jewelry.
14 Karat Heavy Gold Filled(plated).