I'd be on that too. My spidey sense is tingling even if I'm not that up on antique silver.
I suspect that's a 1920s piece, from the metalwork, and so not mourning per se. The center stone is glass. There's definitely a mark in one...
It is. I knew what it was from the original auction photo. They didn't show the mark but it wasn't hard to spot.
Sure cleans up nice!
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