I am a coin dealer who will buy scrap silver and gold and I bought this fish pin on a walk in. I tried and do some research and turns on the designer is somewhere famous I guess and maybe this fish is somewhat rare I did see somewhere it said one sold in auction in 2011 for $263 but I honestly could not find out much about it. Is this rare ? is it worth anything ? where would I sell it ebay ? thank you all very much....