I have an extra GD-VG-EX 1980 set I built from my extras I pulled from packs in 1980, its pretty clean, the Henderson is nice and none of the team cards are marked.
I also have an extra FR-GD 1980 set I also built from extras, its clean but has some FAIR cards in it, HOFs are nice as they are all my childhood ones, but teams cards are marked, and some blemished cards. No other writing or markings other than normal team card checks. No missing paper or anything like that. Just a lower grade set.
I know no one wants them, but I have 2 similar 1981 sets and just in case I have 7 or 8 or each year from 1982-1989 built from my childhood pack pulls as well. Most of them include all the variants like the 1982 Foster and Seaver and 1986 number mix-ups etc.
Same goes for Donruss/Fleer from 1981-1985 or so. Think I have spare 81 Master Sets of both, and sets that include most if not all the errors and variations.
My dad was an early box and case buyer back in the old days, we had lots of cards in the 80s. :)