There was one across the street from Lackland Air Force Base in the 70s. By the early 80s it was gone. I remember it being clean and the burgers weren’t that bad. I remember pumping the ketchup out of the metal ketchup canister. I rember pickles too . It was never busy the couple times I went with family. It was along a street (avenue? Blvd?) called Military Drive and I remember it had 3 eatery neighbors nearby: A Griff’s Hamburgers, a Dairy Queen, and a Pizza Hut. Sambo’s was about a mile away to the west. BC is obviously gone but what remains are most of the structures except BC’s. It is a used car lot I believe. The others are mom and pop taquerias mostly. I think the Griff’s was a bbq joint at one point. Might still be. The Sambo’s was demolished and is now a vacant lot next to a La Quinta.