SAO could stand for "Sterling Silver" in the context of jewelry, indicating that the piece is made of sterling silver, which is a popular metal used in the production of jewelry.
what does the initals spco for on sterling silver as a marking on the bottom of a piece with the 638
It doesn't really mean anything beside "the".
its made in China.
The stamp "925" on jewelry indicates that the piece is made of sterling silver, which is 92.5% pure silver. The abbreviation "WS" might stand for "White Silver," which is another term for sterling silver.
Trees is the name of the silversmith.
If the necklace is silver it means it was made using Sterling silver.
It is a silver mark. It means 82.6% silver (high content but not sterling which must be 92.5% [925 mark]).
STG stands for sterling silver, which indicates that the item is made of at least 92.5% pure silver. KW could stand for Karat White, identifying the specific type or quality of silver used in the item.
The letters in jewelry usually stand for the person who made it or the company. The 925 is the silver content of the jewelry. At 925 you have sterling silver and that is good.
If the piece is stamped "sterling," or "925," then it is real sterling. If it's stamped "IS," the initials stand for "International Silver" Company, an American company founded in 1898 from a conglomeration of smaller companies that specialized in silver plated tableware. IS, or International Silver, only has a thin (.20 mm) layer of sterling silver over a base metal core. It has no melt value.
The numbers on the bottom of a silver candelabra typically represent the silver content or purity of the metal, indicated in terms of fineness. For example, "925" would indicate that the candelabra is made of sterling silver, which is 92.5% pure silver. This marking helps determine the value and authenticity of the piece.