Money by František Kupka Painting “Money” by František Kupka, image from Wikiart, assumed allowed under Fair Use.
Giorgi III coin Image from Wikimedia, assumed allowed under Fair Use. This coin is from the 11th century.
Дельфін Аріхо Image from Wikimedia, assumed allowed under Fair Use. It frankly doesn’t look like a coin to me, but it was in one of the coin categories, so who am I to argue?