El’ station

Restored and colorized 2016 © Marie-Lou Chatel.
Feb. 6, 1936. El’ station, Sixth and Ninth Avenue Lines: downtown side, 72nd Street and Columbus Avenue, Manhattan.
Photographer © Berenice Abbott.
From : The New York Public Library.

Berenice Abbott (July 17, 1898 – December 9, 1991), Bernice Abbott, was an American photographer best known for her black-and-white photography of New York City architecture and urban design of the 1930’s.
Source : Wikipedia.