the bidder can retract the bid based on the item not being as represented, i.e., "one of a kind".

This is the message I sent:

"Dear nanc_nurse,

Greetings,

I doubt that you know me, however, I just wanted to advise you that the JFK
"casino" chip that you are bidding on is not "one of a kind" as represented by
the seller. He/she may think it is, but it is not. I invite your attention to
this web-page where that auction is being discussed by several long-time casino
chip collectors.

Caveat Emptor.

http://www.thechipboard.com/cgi-bin/tcb/tcb.pl?read=370237 "

Well, thats it.

Jim