Found these TSR retailer poster pics on my hard drive this morning while doing website work. They were in a group of auctions somebody had back in 2014. Even back then, they sold for a pretty penny. They appear to date from 1978-9.
Enjoy!
Advanced Dungeons & Dragons, Art, Gamma World, Posters
TSR Rare Old School Game Posters (ca. 1978-9?) – AD&D, Boot Hill, Divine Right, Gamma World, more
