100 Dollars Astro Boy and Uran

Sierra Leone ran an aggressive licensed commemorative program in the early 2000s, contracting with foreign minting operations to produce gold and silver issues tied to popular Japanese intellectual properties. The Astro Boy series coincided with the character's 50th anniversary — Osamu Tezuka's robot boy having first appeared in print in April 1952. These were never intended for domestic circulation in a country where per-capita income at the time hovered well below $200 annually; the issues were produced entirely for the collector export market.