Click on this link and look for split plate doubling http://doubleddie.com/144801.html . This occurs with the Zincolns out there when the plating splits and allows the zinc to be exposed to the elements. Eventually, hydrozyncite takes over and does its work on the Lincoln Cent.
Edited by Rackster
10/22/2016 3:51 pm
10/22/2016 3:51 pm






















