1 Dollar - Elizabeth II 4th Portrait - Platypus Dreaming

Part of the Perth Mint's long-running bullion and collector series celebrating Australian fauna through Indigenous artistic traditions, this piece was issued during a period when the Royal Australian Mint and Perth Mint were both aggressively expanding silver collector coinage to capture growing international bullion demand. Perth's production volumes for one-ounce silver dollars climbed sharply after 2008 as spot silver rose toward its 2011 peak near $50 USD — making issues from exactly this year unusually well-timed commercially.

KM#1609 is one of several distinct reverse designs struck to the same specification that year, a practice that inflates the series count while keeping individual mintages relatively modest.