"The marking ESPO or also found as ESPO-FLEX are the marks of Esposito Jewelry, Inc. a costume jewelry company located in Providence Rhode Island, USA. These marks were first used in 1951."
I cut and pasted the above answer from http://www.modernsilver.com/MYSTMARKS.html
If you have a sterling piece that is plated, ESPO indicates the piece is electroplated. Sterling pieces that are not plated that are marked ESPO may also be made by the Esposito jewelry manufacturing company.
espo was the company that made it. 925 means sterling 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.
Sterling stamped on any item is .925 silver and .075 other base metal.
Sterling silver
Karen Walker, Sterling Silver
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
The mark for sterling silver is 925 which indicates 92.5% silver content.
925 Argento is Italian for Sterling Silver. Most sterling silver pieces are stamped either 925 or sterling. Argento is Silver.
Are you sure it is fspo? ESPO is the name of a vintage jewelry company. I see it on many gold filled rings.
It means it is sterling silver made in Taxco, Mexico
925 is the stamp for sterling silver.
925 means itβs 92.7% sterling silver