The overprinted SWEET CAP 150, Factory #649 cards, and certain So. Lge. OLD MILL cards were printed simultaneously.
The printer inadvertently printed the RED overprint line (inverted) on several of the these cards.
So, nothing new here....on rare occasions these printing mistakes are found on certain cards.
I have a list of these cards; however, I have to run out now. Catch you later, if you are interested.
Example.....
TED Z
T206 Reference
.