Ephemeral reader Sheena passed along these photos she recently took of two old-school signs featuring pre-1960s two-letter phone exchanges. Both come from Crown Heights.
The DE in this F. Goldsmith & Sons sign could stand for Dewey or Defender. What those two words have to do with Brooklyn, I have no idea.
NI is for Nightingale—and Michael Cerverizzo & Sons is still in business on Flatlands Avenue.