As soon as I can obtain a working camera I'll post a picture. While roll searching I came upon a 1944-D Lincon copper cent Obverse is present while the Reverse is a blank planchet... (if that is the correct way to describe it) Is there any collector value to it? Any information or guidance will be greatly appreciated...
Almost always these turn out to be a case of a coin that has had the reverse milled or ground off. One think to look at is whether the blank side is completely flat, and does that flat side meet the edge in a smooth uniform way all the way around the coin. If a previously struck coin was stuck to the reverse die you would get a brockage (Mirror image reversed and incuse image of the other side.) not a blank side. The only way to get a struck side and a blank side is for two planchets to enter the coining chamber at the same time.
A copper cent weighs 3.11 grams. If it's lighter than this, you can be sure it's not a mint error and that it is PMD.