PCGS Vs. ANACS Vs. Other

Here is a great spreadsheet with the foreign coin production info. There were Centavos minted in and around the correct years.
http://www.pdxcoinclub.org/articles...%20table.pdf

@Moxking the overall coin is too evenly affected to have been caused by acid, plus, I don't think that acid could have taken off half the weight of the coin and left that much detail

Ok, so if anyone is still following this... I have been doing some more investigating. The weight is 3.6g (the scale only went on decimal point so it may have rounded to that one place) and the diameter is approximately 19.5mm (give or take .5mm)

It has not been sand blasted or machined or dipped in any sort of acid. I believe the weakness/doubling of the strike is due to the face that it is considerably thinner than a normal nickel and may have bounced when struck? I believe it is a foreign planchet or the end of the roll and wasn't caught and discarded in the melt down bin. Still doing more research and will be sending it off to ANACS when I have a better idea of what error/variety they should research it as. If anyone has a searchable database of foreign coins minted by the US, that would be great.