For a few weeks I have been viewing YouTube videos of the Connections Museum in Seattle, Wa. They are a living museum of telephone gear, especially the central office switching systems. They also have a display of operational Teletypes. However, how did one send a telegram via AT&T? Were the machines for communications within the telephone network offices only? For decades I have enjoyed the machines, but aside from Western Union and private networks on railroads, know very little else about how AT&T carried messages and who they carried them for.

   Bruce Gentry, KA2IVY