1994 Brass Penny (Yellow)

May have been subjected to excessive heat. Wait for the experts.

Thank you, gentlemen. That explains it well. I'll throw it in with the other change.

Yes, the blistering is from heat causing the layers to separate. I've seen similar where people tried to create split-clad "errors".

The first part (below) are the ramblings of me... a guppy.
But at the end is a quote (from a post in January) by an expert.
..........FIRST PART (just me)
Fascinating to find LMCs of different tones and patinas.
From my reading, here is "my" list of 'brass' confirmed error mintages. all dating from the era of plating the zinc planchet (sorry, I don't have the references):
1983, 1985D, 1988, 1997, 1997D, 1998
(Please correct or add to any of this). In certain cases the wrong planchet (material) was used... I believe. Can I expect brass errors exist outside these years, and how can I tell?
I have found one 1977 LMC in particular (BEFORE zing plating) that seems an authentic brass or 'other' material... it just has a 'look' about it. I am trying to get a good photo of it to show you all... how can I tell?
When I find an unusual color or patina or glow on a cent of particular beauty, I put it aside... nice to look at and a curiosity to contemplate... someday, maybe I'll use them to buy bubblegum, but for now. . .
For sheer variety, interest, and education, here is a favorite web site:
http://koinpro.tripod.com/education...egallery.htm
.........SECOND PART
(about the following: I hope it is not improper to do this, but....)
Conder101, in a forum on 1/14/2011, said this:
"When they make the cent planchets the zinc blanks are put into the solution and are electroplated with pure copper. The solution is slightly acidic and every time more zinc blanks are dumped in some of the zinc dissolves and the amount of zinc in solution increases. Then as the electroplating is done some zinc plates back onto the planchets along with the copper ( a brass plating with very little zinc). As the amount of zinc in solution increase the amount of zinc in the plating increases and the plating becomes more and more yellow (Brass with a higher and high percentage of zinc). Finally the planchets are coming out too yellow and the solution is dumped and replaced with fresh solution. So in reality EVERY plated cent is a brass plated cent, just with different percentages of zinc in the plating. When you find one that has a high percentage of zinc everyone gets excited over their "Brass plated cent". "