[packs]

I remember when I was getting into collecting as a kid in the 90s it wasn't unusual to walk around the card show and see signed versions of cards priced lower than their unsigned counterparts. These were the days before grading and TPA's but it seemed like in general the rule of thumb was an autographed card has undesirable writing on it.

I also think this might be the reason there are so many later issue Mantle and DiMaggio and Ted Williams signed cards (like the old Pacific and Ted Williams company cards). People I think were reluctant to have their "good" cards signed but happy to add a signature to something else.