The story behind the coin
California became a state on September 9, 1850 — rushed into the Union, gold still rattling in the rivers, barely a year after the world poured west to dig it out. Seventy-five years later, in 1925, San Francisco wanted to throw a party for that anniversary. A diamond jubilee. And it wanted a coin to pay for it.
That was the whole trick of the era's commemoratives. Congress would authorize a special half dollar, hand the dies to a sponsoring group, and let that group buy the coins at face value and sell them to the public at a markup. The profit funded the celebration. So a San Francisco Citizens' Committee, chaired by Angelo J. Rossi — soon to be the city's mayor — got Congress to act.
The path through Washington was pure horse-trading. Congressman John E. Raker tacked California's coin onto an unrelated Vermont commemorative bill, and the Act of February 24, 1925 authorized up to 300,000 pieces. Children born on the anniversary day were given coins as keepsakes — 494 of them, by one account. The rest went on sale during a week-long celebration that September.