I agree with the first comments in general. The coin does not have the look of a typical numismatic forgery made for defrauding a collector. The weight variance is not really an issue in this case for the reasons given (tolerance and wear).
I would suggest a density check be made along with an XRF specifically looking for two trace elements gold and arsenic. Peruvian silver is not identical with Mexico when it comes to the ores available so a modified look at the alloy is needed to make sure it is good.
I would suggest a density check be made along with an XRF specifically looking for two trace elements gold and arsenic. Peruvian silver is not identical with Mexico when it comes to the ores available so a modified look at the alloy is needed to make sure it is good.






















