Traffic Officer
by Library Of Congress
Title
Traffic Officer
Artist
Library Of Congress
Medium
Photograph - Photograph
Description
A traffic officer in Washington DC, USA, using a manual semaphore to control traffic. He has a rear view mirror so he can see traffic behind him when looking in the opposite direction. These manual signalling systems were eventually replaced by automatic traffic lights. This photograph was taken between 1915 and 1923.
Uploaded
July 29th, 2016
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