This listing is for a Vintage Art Deco Sterling Silver Filigree Marcasite Carved Shell Cameo Pendant.  The cameo is signed on the back but we have been unable to figure it out, and the silver is marked at the bottom "Sterling".  It is in good vintage condition with age/use related wear and tarnish, there are a couple of lines in the cameo and the jump ring bail is quite small so it would need a thin chain to wear as a necklace.  Please look closely at all photos for condition.  If you have any questions, please message me.  Thanks for looking at my listing.