Are you sure it is fspo? ESPO is the name of a vintage jewelry company. I see it on many gold filled rings.
"CI" stands for "Chrome Indicator," indicating that the metal is likely sterling silver. "925" signifies that the metal is 92.5% pure silver, which is the standard for sterling silver. This engraving confirms that the ring is made of sterling silver.
In the periodic table AU stands for Gold, otherwise known as Aurum.
"A71" on sterling silver does not have a standard or widely recognized meaning in the jewelry industry or hallmarking system. Typically, sterling silver is marked with "925," indicating that it is 92.5% pure silver. It is possible that "A71" could be a maker's mark, a custom engraving, or a code specific to a particular manufacturer or jeweler. To accurately determine the meaning of "A71" on a piece of sterling silver, further research or consultation with a professional jeweler may be necessary.
Sterling silver typically refers to a type of silver alloy that contains 92.5% silver, with the remaining percentage being other metals. The number 945 does not have a direct correlation to sterling silver. Look for markings like "925" or "Sterling" to indicate sterling silver.
"5 NV" stamped in a sterling silver ring does not have a standard or widely recognized meaning. It could potentially be a maker's mark, a serial number, or a personal engraving. If you are unsure, you may want to consult with a jeweler for more information.
It is an abbreviation of the word "sterling," meaning that the piece of jewelery is made from sterling silver.
It means that 99.8% of the mass is silver. Sterling has a minimum of 92.5%.
Nickel Free 925 silver. Namely, sterling silver which is free of nickel traces.
Not Really
yes
Means it is Sterling Silver
"966 sterling" does not have a standard meaning in relation to silver or sterling silver. Typically, sterling silver is marked with "925" to indicate its purity level of 92.5% silver. If you have a piece marked as "966 sterling," it may be a manufacturer's unique stamp or a mis-marking.