These are gems!!! Frederick Mosell moved from Paris to the US in 1940 and made jewelry until 1980. There are not a lot of his signed pieces around and they are true finds for vintage collectors. Aside from that, these are really outstanding looking earrings. I am guessing they are amongst his earliest pieces. They are stamped with Mosell in two places. The clip has the standard Mosell stamp that I have seen before in catalogues. The earring itself has a more primitive looking signature. If you double click on the second photo you can sort of see it. If anyone has any information on these earrings, I would appreciate being convo'd. I am pretty clueless about their value. I have seen Mosell pieces going for hundreds of dollars and some of the gold pieces over $1,000. Someone with more knowledge than I have may be getting a very good buy on these. They are hard to part with.