The Franklin Mint manufactured tokens for casino slot machines back in the sixties for a different reason. The casino's couldn't keep silver dollars on the property, as vacationers were taking them back home by the bagsfull. The law was changed in Nevada which allowed the casinos to have their own tokens struck as a replacement for the hard to obtain silver dollars. When silver got over $1.29 per ounce, there was over $1 worth of silver in a silver dollar. By 1980, silver was approaching $50 per ounce and most of these government silver dollars, which were 90% silver, wound up in the melting pot.