YouTube uploaders Bravura Media Company is a channel that analyzes old historical maps and photographs, most of which are New York City related. In this photo, the team examines a map from 1940 of the Brooklyn-Manhattan Transit lines, better known as the BMT. The company and it's properties were sold to the City on June 1st 1940 to make up the MTA Subway system, but most of these lines are still in use today.
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