1 Crown - Elizabeth II Polyjuice Potion, Silver Proof

Part of the Isle of Man's long-running Harry Potter licensing series, this piece was issued to coincide with the theatrical release of *Chamber of Secrets* in November 2002. The Isle of Man Treasury has pursued entertainment licensing aggressively since the 1990s, and the Harry Potter coins — spanning multiple films and denominations — became among their most commercially successful collector issues of the decade.