Discover the true value of rare coins from the UK, Australia, and Canada! Learn about the £2 circulation coin in the UK, the 2018 Australian 2 Dollar coin, the 2018 Canada 2 Dollar Armistice Colorized Poppy coin, and the 2018 RAF Sea King £2 coin. Our expert review covers the history, rarity, and estimated market value of these collectible coins from 1918 to 2018.