1 Dollar (United States Army Commemorative)

The 2011 United States Army Commemorative Silver Dollar

In 2011, the U.S. Mint put two soldiers back to back on a silver dollar — one man, one woman, a globe behind them — to mark an Army that turns out to be older than the country it serves. The proof sold well. The uncirculated version barely sold at all, and that quiet failure is exactly what collectors chase now.