Green mold on copper coims
Posted: Sun Oct 16, 2016 11:14 am
Hi, I was recently given $13 of relatively new cents (1960's to 2011). Most of them have green mold spots or major cases of the copper mold.
How do I get rid (clean up) this contamination. Does anyone have a home brew that will
stop the deterioration of the coins.
Thanx in advance
David
How do I get rid (clean up) this contamination. Does anyone have a home brew that will
stop the deterioration of the coins.
Thanx in advance
David