John MacintoshA technician doing maintenance work on the electromechanical telephone switches in the telephone exchange building at East 30th St., New York City, 1938. #PastTimes
via Brian Roemmele from Twitter
A technician doing maintenance work on the electromechanical telephone switches in the telephone exchange building at East 30th St., New York City, 1938. #PastTimes
via Brian Roemmele from Twitter