Letters Stamped on Locket?

A metal locket with a marking inside.What are the letters stamped after 925 on this locket?


A metal locket that says "Mom".

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Bronze Post Medal for All Time! 105 Posts
October 20, 20200 found this helpful
Best Answer

The 925 is a silver marking that is stamped on silver. The letter M9 I believe is the region or person who has made this item. I have looked at different silver markings and I am normally really good at finding the mark but I can't find this one. I am not sure how pure the silver is in your locket or if it is actually silver plated. I have searched all the databases I use to identify the silver markings and yours is not in there at all. I would suggest that maybe you take this to a jeweler and see if they can help with this mark. Hopefully, another person here can find the mark but I am not having any luck at all.

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October 20, 20200 found this helpful

Thank you so much for your very thorough answer I thought it was just me having problems finding the m 9 anywhere.
Wish me luck and let's hope the mystery is solved soon thanks again

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January 30, 20210 found this helpful

Just a buy a silver test kit which is a bottle of nitric acid. Put on some safety glasses and mix some baking soda and water for the neutralizer. Drop a drop of acid on piece in question, if its plated it will quickly eat away and expose the copper.


It will turn colors as to the purity, plating etc but I forget the chart. Comes with kit. Then throw the paste on it to neutralize the acid and wash off.

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Bronze Post Medal for All Time! 140 Posts
October 20, 20200 found this helpful
Best Answer

This piece is made of 92.5 Silver to 7.5 percent alloy (925 stamp). M P letters indicate the amount of gold plated added , and also the letters stamp is called a hallmark of gold. Here is a link in understanding the meaning of the numbers and letters that represent gold , silver, alloy amounts in jewelry. -

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Gold Feedback Medal for All Time! 949 Feedbacks
October 22, 20200 found this helpful
Best Answer

Nice locket.
The markings on this item - 925 MP - meant that it is 92.5 silver with a thin gold plating. The GP means it is has a thin gold plating (over the silver). "The most common stamp used in gold-plated jewelry is GP (standing for 'gold plated')."


It is called gold vermeil but this mark does not tell you what karat gold the thin coating is. If you wish to know what karat gold coating you would have to have someone test it for you.
It really does not matter what karat gold plating it is because it will be very thin and it will wear off with normal 'wearing'.
To fully understand about gold vermeil you would probably have to do some research.
Here are some links in case you are interested:

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Bronze Feedback Medal for All Time! 196 Feedbacks
October 23, 20200 found this helpful

The other posters have give you the info you asked for.

If you are asking because you are interested in selling, may I suggest (based on experience here) that you take it to a place you trust and have them look at it in person and decide (test either with the acid test or the Treasure Hunt I go to has a special machine) and figure out what metal you are ACTUALLY dealing with and if it has value.


I have had pieces marked as yours is that were nothing (meaning they were plated metal--despite that they were marked).

I have also had unmarked pieces turn out to be sterling silver or 18K gold.

There are, and have been, many dishonest makers out in the world and I never trust a marking (or an unmarked) piece. I have it tested. That is the only true test of what you have.

Post back what you learn! Gold and silver both were doing pretty well last I looked so if you want to sell, watch the trending markets!

Thanks for sharing!

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