Despite being owned by TSR, the Dungeon Hobby Shop in Lake Geneva, Wisconsin sold RPGs, boardgames, and gaming accessories by a number of companies.
Their 1982 mail order catalog is a snapshot in time of the state of the hobby. For gamers who did not live near a metro area blessed with a hobby shop, mail order was their only source for RPGs.
Gaming Catalogs in my online shop
Fighting Wheel: Make quick work of by-the-book AD&D combat (1981)
GATEWAY TO ADVENTURE: TSR’s Classic Games Catalog (1980 & 1981), plus Rare Black Cover
TSR product posters (ca. 1978-9?)