So very unique and unusual. What a conversation piece. We believe these are Bakelite. 7 Bakelite Pink Circular Art Deco Ash Trays or Coasters. They measure approximately 4 1/8 and 4 1/2 if you include the little handled tip. They seem to be in a wonderful condition not sure if they’ve ever been used. No markings on the bottom Not sure, one possibly night have a crack took a picture of a can’t really tell. Winning bidder to pay 699 first class shipping in the states (fox 12)