Jack Klobnak writes in: "I took this pix in the 1970's. It is on Choteau Ave. in St. Louis, which was famous in the early 20th Century for Brain Sandwiches (use a lot of mustard). It was not uncommon for dolts to be told to take a quarter down to Choteau to get some brains. Sadly, the building is no longer standing."
The location appears to have since been completely redeveloped as a hospital.