50 Cents - Elizabeth II Hatshepsut

Hatshepsut ruled Egypt for roughly two decades in the 18th Dynasty, yet her successor Thutmose III systematically erased her image from monuments, cartouches, and king lists — an act of damnatio memoriae so thorough that Egyptologists didn't conclusively identify her mummy until 2007, when a DNA match to a displaced tooth settled a century of debate.

The Solomon Islands has issued commemorative 50-cent pieces under Elizabeth II's effigy well into the 2020s, a program that runs almost entirely on collector demand rather than circulation.