Aluminium-bronze can turn all kinds of weird colours, under certain conditions. The golden colour is the coin's "natural" colour, the greeenish hue has seen some environmental exposure. I'd agree that this coin may have been placed obverse-up on a surface and left there for some time.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis























