Need Help With Damaged Envelopes

Currently there is an ebay seller (retirement2029) who is selling groups of multiples of U.S. envelopes that have severe damage. Here are examples from an ebay search:



With all the various lots, the damage is similar:
1. a physically abraded surface, usually hitting the indicium,
2. a streak from a felt tip marker,
3. a generally poor condition (bends, crumples, etc.)

Only thing I can think of is these were envelopes returned to the post office in trade for newer products. The "demonitized" envelopes then found their way into the world of ebay.

Anyone seen anything like this? Thoughts on another explanation?

Printer's waste?

It seems unlikely that he'd find printer's waste of 2 cent envelopes as 10 cent and 29 cent. His selection of stuff seems like a yard-sale -- random stuff.

The envelopes seemed to have been poorly stored, not damaged in printing.

The marker lines are the weird part. Not sure why someone would do that. I can't see a printer doing that to everything that went in the trash; too much work.