[old-baseball]

I don't think it's a stupid question at all. I've often wonder the same thing myself. I don't have an answer but maybe an addition to the mystery. The Collins - McCarthy Bagby shows what appears to be product stuck to the card. Was it placed in with the candy? How about the E121-80 of Alexander and Johnson. I've seen many cards with similar stains along the edges always somewhere around the perimeter of the card. Its only on the front and doesn't show through to the back. Is it product stain or other remnants of how the were packaged?