the diceman book lists them as a rarety 8 worth $16-$25. As these are glue damaged they would be at the low end. I will let them go for 15 clams shiped. If the pair you saw for 16 clams on the net is the same age and in good condition I would grab them. I do not realy collect chips but pick up some here and there for my brother who does and would be willing to trade.