Don, keep in mind the Reno club (Club Cal-Neva) opened in 1948, so all chips before that time had to have come from the Tahoe site. And aside from the chips that I posted in today's COTD, the only other Cal-Neva chips besides their "fractionals" without the word "Lodge" on them are the chips below, which have been determined to have been used in both clubs.
I suspect that the manufacturer's records would tell the story on everything else.

Maybe one of the TCR crew will confirm and explain better than I can.