In 2005, commemorative poker chips were produced by Gamblers General Store in celebration of the Las Vegas Centennial that year.
The Gamblers General Store is located in Las Vegas, Nevada and its webpage describes it as: "The World's Largest Gambling Supply Superstore".
The centennial-produced poker chips featured images of artists (a different artist on each side of a chip) who had performed in Vegas and the respective year of the performance.
A year ago, a 2005 chip with Glen Campbell's image from a 1977 concert in Vegas could be purchased for as low as $1.95 (U.S.) on the secondary market.
One chip is now listed for $2.95. However, another chip is listed with a $39.00 starting bid and a buy it now option for $55.25. It has the same 1977 image of Glen.
On the reverse side is a picture of Frank Sinatra, Doris Day, and Lauren Bacall. Perhaps the image of these celebs, in addition to Glen, makes it more valuable?
Below is a picture of a few of the commemorative chips. Glen Campbell's 1977 image is on all of these chips. The reverse sides have different artists, the most notable could be the one with Howard Hughes (1966)? All of these chips were listed for under $3.00. [Click on image once to enlarge viewing window.]