2025 $1 60th Anniversary of The Royal Australian Mint Uncirculated 4 Coin SetThe construction of the Royal Australian Mint commenced in 1963. This marked a new era in Australias history. Designed by architect Richard Ure, the project began with extensive excavation, which encountered solid stone at the basement level, ideal for secure vaults. The administration building featured Wondabyne sandstone and marble, with terrazzo columns and steps. The coin hall floor used end grain tallowwood. A unique feature in the construction