I bought $50 of P&D Shield Cents and I'm seeing an area near the edge that is raised so that the letters and field are about the same height. It covers about 1/4 to 1/3 of each coin. Is this an error and if so, what is it called. It looks as if the copper layer has been moved across the coin because of less pressure on one side. So far it looks like about 20% of the coins have this "copper wave" on the outside edge of the coin. I'll post some photos tomorrow. Thanks! Ben
