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I have done a lot of research and I found out what the Mark is it’s a company I believe called corbell silver company they do a lot of reproductions and stuff on silver plating exedra but I don’t understand what type of cup this is that’s what’s driving me crazy it’s only about 4 in tall by if that 4 inch wide if that anybody’s got an idea let me know thank you very much or if you find out that I miss identify the company