Im enjoying seeing some your collection. The £20 coins are ok, i have a few of them and the £50 and £100s but feel missold on them and does make you question legal tender and the perceived value. I just bought a 2017 Ghana African Leopard, it has a 100 Cedi face value that was minted by accident, should of been 5 Cedi, 100 Cedi converts to £17.42 which makes it an interesting coin.