Hi Kate - Three crowns is the SWEDEN Country mark and Standard mark (S, not always present) on SILVER ca 1912 - Present. How the crowns are stacked - their arrangement - have to be considered.
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MAYBE SWEDISH by: Anonymous
I'm looking at buying it and the seller thought it was Italian, but I don't think it is - I think that the 3 crowns might be Sweden.
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Addendum - Necklace by: Anonymous
I asked yesterday about an Italian necklace: it now turns out it may not be Italian..It was handed in to a jeweler's store in Florida for melting down.
DE under this is F Then there is a mark with three tiny crowns, then it says 18K and after that there are the numbers 010. (yesterday I sent this in as 910 but in fact it's a 0)
The markings are on the clasp - picture sent yesterday.
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Original 18 K CLasp by: Anonymous
If the clasp is the original to the necklace chances are pretty good that the chain is also 18 carat gold. Have you examined the chain with hand lens? The only way to know for sure is to have the metal tested. What makes you think it's Italian? Just curious.