I have extras of a number of the silver tokens made for Nevada casinos in 1967. There were 30+ different and I have extras of the 20 shown below. These are all .925 silver and weigh about 1.3 troy ounces. All are uncirculated. These are made by Franklin Mint, and the design and production was just superb, much nicer than slot tokens made in later years.

Price is $50 each, shipping included, which is just above the value of the silver contained.

4 queens
sahara
silver slipper
nevada club
harveys
el cortez
mint
aladdin
golden nugget
California club
hacienda
cal-neva
stardust
riverside
sahara tahoe
holiday reno
showboat
thunderbird
fremont
harolds (Reno replacement for Las Vegas error)

Here is a scan of a typical token, this one from the Thunderbird.