While looking through a bag on pennies, I found this 1948-S with a very high, almost rolled rim. It obscures the "8" in 1948 and the "L" in Liberty. Is this an error? Or is this possibly damage from a mounting? I haven't seen one like this, so I thought I'd ask. Click on the thumbnails below for a much larger view. Thanks! Chris
The rim is PMD, but... It has the woodgrain effect. This happens when the copper mixture is not mixed well. It is extremely common on almost all dates that are made of copper. So no added value, but an error.
That's right. More accurately the coin gets stuck in the fin of a commercial dryer for a long period of time and goes through thousands of cycles of bouncing around inside the fin.
That cent has had a rough life, I can imagine it's been used as a flat head screwdriver among other things.