100 Pounds - Elizabeth II Mahatma Gandhi, Gold Proof

This coin was issued as part of the Royal Mint's series commemorating figures of world historical significance — a program that has drawn periodic criticism for lionizing non-British subjects on British currency. Gandhi's inclusion is pointed given his role in dismantling the very empire whose monarch appears on the obverse. He was imprisoned by British colonial authorities on multiple occasions, most notably during the 1942 Quit India campaign, and died less than a year before India's independence was formally declared.

The Spink reference OB3 places this firmly within the "Great Britons and World Figures" collector series, struck to bullion-coin fineness rather than the traditional .917 used for sovereign coinage.