Auction houses that don't describe flannel jerseys completely.
Many AH are occasionally guilty of this. Latest example I've found:
https://goldin.co/item/1966-boog-pow...needs-sigxu2gc
Nowhere in the description does it mention the NOB is removed. For a collector and certainly for an investor, this is a major thing.
I've had discussions with 2 major AH in the past couple of years about this. Both have said that if they don't mention any restorations/alterations, I can assume the condition is all original. My reply was that with those items, I'd have a better comfort level (and they'd likely realize a better price) if they would simply put "all original" in their listing. Sometimes they do, sometimes not.