Niewmismatic Error Coins

 This is another piece of Johore Katun impaired tin coin. It was found in Sungai Kota Tinggi, Johor Bahru under 60 cm deep of stink,stench,foul smelly mud. However, I think may be it was under this condition that it was preserved in such good condition.

The smelly mud had "block" the aging of this coin. It was totally "cut off " from any new air that will oxidise the tin composition of the coin.