Of course it did not come from the casino.

You didn't read my eBay description:
"5 commemorative tribute poker chips, in excellent condition, showing the opening and closing dates of the original venerable Flamingo Casino. (In 1970 it became the Flamingo Hilton.) These chips (rare and collectible) are not casino chips, never were issued by anything associated with the Flamingo. Rather they are poker chips, made for collectors and home games. Obsolete now. This is my last of these chips."

http://www.ebay.com/itm/151254223190?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

Robert