I just remembered something... did you kow in Golden Axe Warrior the currency in the game was called "horns"? The currency symbol did depict a horn.
I mean can you imagine wanting to buy an expensive item and have to carry all those horns on you?
If hypothetically speaking horns are a canon currency in Yuria, do you think they simply name coins after them or something? I mean carrying around all those horns would be a hassle.