VINTAGE SET OF 6 DEVIL GARGOYLE IMP SPOONS marked 100

UP FOR AUCTION IS THIS SET OF SIX OLDER SPOONS. VERY ODD/UNIQUE LOOKING. I AM NOT SURE WHAT KIND OF METAL THEY ARE MADE OF AND THE ONLY MARKING IS THE #100 INCISED ON THE BACK OF EACH SPOON. I AM ALSO NOT SURE IF THEY DEPICT A DEVIL, IMP, OR GARGOYLE. THEY APPEAR TO BE HANDMADE. BOUGHT AT AN ESTATE SALE YEARS AGO. BESIDES THAT THIS IS ALL I KNOW ABOUT THESE SPOONS. IF ANYONE HAS INFO. SEND ME A MESSAGE. SZ. IS 4 1/4"L. I HAVE NOT TRIED TO POLISH/CLEAN THE SPOONS. EMAIL W/QUESTIONS BEFORE BIDDING. THANKS