Well it's not a gas bubble I zoomed in 400 times it appears to be a die gouge or chip. I think better pics are needed to determine if it is a RPM. JC
from what I can see, that is just the zinc rotting thru the copper plate. Zooming it only produces a pixelated view and nothing can be seen from that. In 1982 around October, everything changed when the U.S. Mint started striking cents with a core 99.2% comprised of zinc and .8% copper, with the cent bearing a thin outer coating of pure copper.
View attachment 58715 No when I zoomed in there was a line beneath the MM there are so signs or indication of any plating problem in the area. To me it looks like a amall die gouge just an opinion I must make that clear Here's the image near the MM a line and it looks like a raised line simular to a die gouge no plating problem Jazzcoins
I have to agree with Rockdude on this one. Way to much blur/pixilation on the photo to tell anything about it. That is the one thing if anything I have learned in searching for errors. If you zoom in enough you can see anything you want. Dave
I would agree with that! Despite what's seen on TV CSI, enlarging a photo beyond its maximum resolution only interpolates existing data, and does not create more detail. Obviously if the details cannot be easily seen and discussed by everyone, then it becomes an interpretation which can quickly replace discussions based on fact. This shouldn't be about our imaginations--either the coin details indicate an error, die varitety, etc, or they do not.
That's right we might find Jimmy Hoffa in there. That's right we might find Jimmy Hoffa in there. But really, you got to know zinc rot, or plating lift or whatever you want to call it, that's what it is. Really we see these day in day out. The mint had great difficulty finding a way to assure the copper plating would adhere to the zinc core. 1982 to 1985 I have seen some really bad coins - even today set a post 1982 cent outside along with a copper cent and see what happens. As I am searching my usual 7500 cents each week often people will roll up cents that have no use for commerce whatsoever - I literally throw them away in the garbage can. I don't want to do that but I will not re-roll them and pawn them off on you - they have no more use.