Marshall, just so you understand. As Matt explained, by the time the gold coins in this thread were minted there were no US coins being struck on previously minted coins or tokens. In fact I'm pretty sure that the practice ended in the US around 1800. Before that the mint had a very hard time getting planchets or metal to make planchets. So they did what they could and used what they could get. But after that, it never happened again.
There are wrong planchet errors even today. I have begun to doubt my initial reaction of the marks in the field in front of the face as a smaller denomination strike though. I'm beginning to suspect what I thought was a nose is actually the top left of a crown oriented in a down facing direction. I'm going crosseyed making distinctions between pre and post mint damage. The closer I look, the more I see AND imagine. That's why all I offer is an opinion from someone who is definitely NOT an expert, but is trying to learn. In this regard, your help is greatly appreciated. By the way, the intentional cut down large cent for use as a Half cent was commissioned by Dan Holmes to recreate the piece used to verify the old 1796 NC-6 which was delisted by Sheldon in Penny Whimsy through use of the undertype of the Half Cent and is currently the called the 1796 NC-7. I'm sure you probably know this, but it is what has gotten me looking for such undertype and seeing the double hubbing everywhere I look.
I know I need to get the correct terminology down as I must be confusing everyone when I make no distinction between same and different dies when I say undertype generically for any image which is bleeding through the final strike.
Yes there are. But there is an immense difference between an error and an intentional over-strike. Wrong planchet errors occur when a coin of one dnomination gets stuck in the hopper. And later when that same hopper is used to hold planchets for a different denomination. Then the stuck planchet comes loose and the error occurs - completely without the knowldge of the mint employees. It's a mistake. With over-strikes, the mint employees intentionally use previuosly struck coins as the planchets for the new coin. There is no error. There is no mistake involved. To use your own words, when it comes to the coins in this thread, you ARE imagining things.
Forget the different denomination. Does anyone else see at least two images of the IN GOD WE TRUST banner bleeding through the field between the bottom of the Eagle and the the U . 5 D . A on the new $5 Reverse? This is easily the most recognizable and if I'm the only one seeing it I'll be ready to get counseling.
Marshall, I guess it depends...if they are happy images you're seeing, you might be better off just living with them. If they are mean to you, perhaps counseling will help. No one wants a motto shouting obscenities at them.