I remember when I first started collecting, everyone was chasing the 1981 Fleer Nettles card, where they had Craig Nettles on the back of the card. I'm sure it's probably not worth much today... but it was the card to have in my neighborhood, "back in the day".
Yeah! That card and the 1979 Bump Wills error card.
Oh yeah... I totally remember that error. It's the Rangers/Blue Jays error. Another classic error card.