Heres a 1983 cent with a lot of small raised spots and slightly off center. Just thought it was kind of neat.
I see a lot of those type in from 82,83,84,85,86 but seem to stop at about 88 or 89 , waht kind of lamination issue did they have back then? also the details on the strike are the worst!! did they just not change the dies?
In 1982 the mint changed the composition of the cent from copper to a zince core. In the 80's the mint had problems with the lamination of the cents, so those raised spots that you see are problems with the annealing process. Lou
I see and have a lot of these too. Somewhere I read that there was a problem with gas being trapped between the layers. What you see is gas bubbles. I have a few that are open holes like craters. That's when the gas makes it to the atmosphere and the bubble pops.
Yeah, I know what you mean. There's really two issues- the bubbles, which I've also heard are from gas in the annealing process, and die fatigue, where there are far too many dies used for far too long, leading to some extreme broadening, especially in the "IN GOD WE TRUST"
Copper-plated zinc cents are not annealed. This is a case of blistered plating. Heat generated by the strike causes gas to expand between the copper and the zinc, forming blisters. You can see this on off-center cents from the period, where the unstruck part of the planchet has no blisters, while the struck portion does.
