Posted 10/11/2013 6:18 pm
The zinc has started to corrode underneath the plating.
Common problem with all cheaply plated objects.
The U.S. Mint has obviously realized that the modern copper plated zinc penny was going to spend most of it's life in cookie jars before slowly corroding away to nothing.
Because these coins see so little repeated circulation, is is perhaps not surprising that almost all of them show no signs of significant wear, unlike LWC's.
Perhaps good riddance to Zincolns?
Maybe we would be better off with plastic injection moulded pennies: they would weigh less in a cookie jar with at added benefit that there is no heavy metal involved.
I vote for cleaner and greener cookie jars!
Common problem with all cheaply plated objects.
The U.S. Mint has obviously realized that the modern copper plated zinc penny was going to spend most of it's life in cookie jars before slowly corroding away to nothing.
Because these coins see so little repeated circulation, is is perhaps not surprising that almost all of them show no signs of significant wear, unlike LWC's.
Perhaps good riddance to Zincolns?
Maybe we would be better off with plastic injection moulded pennies: they would weigh less in a cookie jar with at added benefit that there is no heavy metal involved.
I vote for cleaner and greener cookie jars!
