Here's link to the Ebay auction for "Back to the 40's" set. No bids when I looked; I think $400 is too much for the set -- my personal opinion -- but depends on how much someone wants it.

BTW, while individual chips were released one-per-month, there were also some complete 12-piece framed sets WITH SAME SERIAL NUMBERS produced. They were awarded to some slot winners. Don't know how many of the framed/same-number sets were made vs. individual chip releases.

These chips were harder to obtain than most LE's (some would say a real pain in the neck!) Individual chips seem to be priced at $12-$15 each, so an unmatched set would be $150 to $180, plus the effort to find 1 of each different. For a complete matched set, expect to pay a premium, and for a matched/framed set, I would estimate $250-$300+. However, I haven't shopped the market, so I'm just guessing.

Will scan & post image of them in a separate post.