10 Dollars Princess Louisa

Princess Louisa was a British paddle steamer that sank in the St. Lawrence River in 1831. Liberia's early-2000s novelty coinage program produced a wave of oversized "coins" incorporating embedded objects — shipwreck glass, meteorite fragments, gemstones — marketed almost entirely to collectors outside Africa, with no realistic prospect of circulation. The KM#493 type is a product of that trade rather than any monetary need.

The glass inclusion is the only thing distinguishing individual examples; no two pieces contain identical fragments.