The sign says “Videotapes for rent”.

Before 1989, private businesses were mostly not legal in my country. One of the first business types that kickstarted capitalism in Sofia was stores for lending video tapes. They were found in improvised spaces like car garages or electrical substations. It was fun to find a sign for one of these still not repainted. The sign looks fresh, almost like graffiti. Made me check if it actually works.