1921 Morgan Silver Dollar Named after its designer, George T. Morgan, this silver dollar is noteworthy and highly collectible because it is the last in U.S. Mint's series of "cartwheel" silver coins. The Morgan silver dollar was minted between 1878 and 1904, and again, for a final year in 1921. Al of the coins have been dubbed cartwheels because Lady Liberty, whose profile appears on the coin's obverse (front) is surrounded by a ring -or cartwheel - of stars. George