That was my first thought, like the 1990 Topps Frank Thomas NNOF, but that affected like 12 cards. If this was a regular thing, many more cards would have been affected in this set. I was thinking the fuzzy black line was due to a thinner paper depth from the top layer being torn off.

If the card was actually printed that way from the factory and made it out in distribution to the public, then the other affected cards to look for would be Matt Alexander, Dickie Noles, and Glenn Abbott. They were the three cards that bordered Comer in the upper right corner. Comer is on the left side, third card from the bottom.

Here are some football cards.........
http://i1135.photobucket.com/albums/...psr7vgtny1.jpg

The NNOF was a bit of something making the black plate faulty across those several cards.

A solvent stain would usually only affect one sheet. Maybe 2-3 if it was really bad, but usually just one since the surfacing keeps the stuff from soaking through. The thinning would have affected all the colors the same way.

Here's a card printed on thinned stock. It's from a makeready sheet where the corner was torn off to mark where the test sheets ended and the good ones began. The borders and blue are the most visible, and in person you can see how they both just fade out. The blanket presses into depressions, but it can only go so far.
I saw the sheet the card was from intact at the dealers before it got cut into singles. Tried to buy the whole thing, but couldn't afford a wrongback sheet. Settled for the corner card with the torn off corner.

Steve B
http://www.net54baseball.com/picture...pictureid=3243

Found a red factory print line that crosses over 2 separate cards. Starts on the bottom of the Muffett card and crosses onto the Heman card which appears on an uncut sheet to the left.

1964 #289 Funk
 

Can anyone figure out what the writing says at the bottom? I also have no clue about the other closeup from the left.

Nevermind

I would assume that says, "1964 Rookie Stars" from an adjoining card. The Yankees rookies are red, and there are probably others.

1960 #459 Reds Coaches
 

This yellow dot at the left is prevalent in about 33 to 40% of the cards of it on eBay. It is extremely easy to find if anyone is after such issues.