Yep, it's a replica of an "old man dollar". The original coins were struck by rebels on Taiwan sometime around 1840. Genuine coins are rather rare and quite valuable, being the first Chinese-made machine-struck dollars and with a design distinctly different to all other Chinese coins, before and afterwards.
NGC catalogue database page.
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