5 Dollars - Leonard I U.S. M-551 Sheridan Tank

Hutt River Province — the micronation declared unilaterally by Western Australian wheat farmer Leonard Casley in 1970 after a dispute with the state government over wheat quotas — produced a steady stream of numismatic issues throughout the 1980s and 1990s, largely as a revenue stream for the self-styled principality. This piece honors the M551 Sheridan, the aluminum-hulled airborne assault vehicle that saw troubled service in Vietnam, where its ammunition combustible casings proved dangerously vulnerable to enemy fire and booby traps.

The Sheridan was phased out of U.S. Army service in 1996, just five years after this coin appeared.