I have very old necklace stamped 356 also with a Crown stamped also.
It probably reads 92.5 which means it's 92.5% silver, a common percentage.
It's a purity mark, which indicates what percentage of silver is in the item. In that specific case, the piece is 96.2% silver, and the remainder is probably copper.
if the number .925 is stamped on it also that means sterling silver if the number .999 is stamped on the ring that means it is pure silver if no numbers, i am not sure
do not touch
Sterling stamped on any item is .925 silver and .075 other base metal.
If a piece of jewelry is stamped with OTC 925, the OTC stamp is the name of the company that made the jewelry, OTC International. 925 is a common stamp on all sterling silver.
From what I have looked up, A1 stamped on pieces means the piece is silver plated.
Acid test the piece. 99% of the stamped .925 jewerlry on Ebay is FAKE silver.
A 925 stamp (aka a . 925 or S925 stamp) signifies that 92.5% of your jewelry is sterling silver, and the remaining 7.5% is made of alloy metals. If you see 925 stamped on a piece of jewelry, this means the jewelry meets the quality standards of silver.
The "IS" stamp on a silver spoon likely stands for International Silver Co, which was a prominent American silver manufacturer. The stamp helps to identify the manufacturer of the spoon and can also sometimes indicate the silver content of the piece.
From what I have looked up, A1 stamped on pieces means the piece is silver plated.
If a piece of jewelry has 925 CISS stamped on it, this typically means it is 925 karats. The CISS is just the abbreviations for the maker of the piece of jewelry.