There have been seven basic designs of the U.S. quarter. Most of these are known by the design on the obverse of the coin, though one, the Barber, is instead named for its designer, Charles Barber.

In fact, one sold in 2022 for $1.74 million, making it perhaps the most expensive American quarter ever sold. The 1901 S Barber quarter is a very rare coin minted in San Francisco. Made almost ...