Another goodie from the Box of Ye Olde Role-Playing Games – the 1980 Iron Crown Enterprises release The Iron Wind:
The back cover:
According to this site, this book had a print run of 5,000 copies, and after it had been out for a while, the black and white covers were stripped off the as-yet unsold covers and replaced with color covers.
Like several items in this particular collection, the sales receipt from the original purchase of this book was found inside:
As a result of being kept in the book for, oh, 30+ years, a rectangular “tanning” spot was left by the receipt on the pages it was kept between. …Hey, that’s not “damage,” that’s “character,” I tell potential buyers.