This was an apartment building with a locked, windowed outer door and a bellbox. If someone knocked on my front door I could use the peephole, but if someone ra

This was an apartment building with a locked, windowed outer door and a bellbox. If someone knocked on my front door I could use the peephole, but if someone rang the bell you had to step out into the hall, and then they could see you as well as you could see them.