Here's a small but slightly odd label printing error. I bought the CSN&Y album, Deja Vu, in 1970 (still got it) but it wasn't until a bit later I noticed that the words "ONE" and "TWO" in the centre strip of the label had each been assigned to the wrong side. The actual track pressings are correct and the song titles are correct for each side. Just those two words that are wrongly printed.
I worked in record shops in the 70s and 80s and was a manager for over 10 years and although there must have been a few that were printed before the error was spotted, personally I never came across another copy.
SIDE ONE
SIDE TWO