That’s a terrific find and a rare coin, although I don’t know what its value would be in that condition.
Those linked above are four duiten coins and yours is obviously two duiten (from the number 2 and also the number of leaves on the branch where the parrot is sitting). There was also a one duit. They're usually uniface but some have a depiction of a tree on the other side.
I agree the date on yours looks like 1676 but that raises a question. These coins were produced in Suriname on the instruction of Governor Johannes Heinsius (who was said to be fond of parrots and kept them as pets). But he wasn’t appointed Governor until 15 January 1678 and the first coins were produced in 1679, bearing that date. This was in defiance of policy that Dutch colonial coins should be produced by homeland mints, but the colony was so short of coinage that he went ahead anyway.
I wonder if that ‘6’ is actually the result of a die punch for ‘9’ being inadvertently used upside down? Such errors are not uncommon in older coins but I haven’t seen it reported for this one.
