As I understand it, they were minting them. But since there were no S-mint-mark coins after 1955, I don't remember whether SF participated.
I think Philly prepared and punched the dies for the branches. If that’s right, it just didn’t punch these, it sent off dies that were unpunched with mint marks.
One of the drivers was bumped and went off the track in a turn. He flew up and over, then disappeared. 3 laps later he came flying back over and landed on the track. He lost that heat but he put on a great show. And not a single person was hurt in that.
When the Coinage Act of 1792 was passed, there was a quarter dollar, which was one-fourth of a dollar. The quarter eagle was one-fourth of an eagle, which was $10. The $2.50 gold coin was never tremendously popular. It was too much money to carry around or use on a regular basis. It was too small for merchants who were conducting large transactions. The five, ten and ultimately the $20 gold coin was the coin of choice.