The auction will end in 26 hours...have you taken a look at this vintage Showboat Chip?
The Chip Rack assigns a number to each chip, and this chip is N6689. There were 1,000 of these issued in 1956 and the 9th edition of The Chip Rack, which came out in June 2002 values it a "T".
Even if you can't buy...just take a look...they don't come around that often! :-0!