Island of Sumatra. Interesting piece, Scott.
Not a coin but a token.The country names, dates and denominations are all fictitious. Singapore traders had them made in Birmingham for the same reason that English traders did; a shortage of small copper coinage.. I know of 15-18 varieties. There may be more. Your example is, sadly, one of the most commonly faked. I'd need to see it in hand, but I don't fancy its chances.