Let's not forget that there were other half dollars besides those from Franklin Mint, Mel. Osborne Coin made several in the oddball "Silveen" metal about the same time. They are pretty scarce.

Here are the Silveen tokens from the Sahara Las Vegas and from Liberty Belle Saloon in Reno. Bill Payne told me there were only 40 known uncirc halves from the Sahara.

DonL