which were only used for baccarat (not throughout the casino at all games) pre-date the $5 Bi-Centennial chip by about 2 years.

According to B/G the Sahara plaques were delivered in 1974. According to other people that I have talked with, the plaques were only in-use for a few months and then pulled.

This speaks nothing to the possible time frame that the BJ CIC chips were in-use.

Jim