Hink -
I have seen the font on the card somewhere, but have no idea where - just the font not the card that I can remember.
I believe Frank's guess is correct. On the phone earlier today, I told someone the exact same thing.
The Bleeders were also sold in bulk form as a "brick", with dozens of them all stacked together to form a brick. Not sure how many bleeders it took to make up complete brick. I've seen a few bricks, but only one that was unmolested. I have part of a brick somewhere around here. It has a giant pop sickle stick in the middle of the stack of inserts to give them more rigidity.