Mexico 1819 8 Reales coin, counterstamped around 1834 for use in Portugal as 870 reis.
There are fakes of this type of stamp that get applied to 8R coins in modern times... this doesn't jump out as one, but something to be aware of.
There are fakes of this type of stamp that get applied to 8R coins in modern times... this doesn't jump out as one, but something to be aware of.

























