NYC Doors

The Roy Colmer New York City doors photograph collection consists of the photographic prints used in Colmer's conceptual art piece, Doors, NYC (1976), which includes more than 3,000 images of doors taken in sequence on 120 intersections and streets of Manhattan.

https://digitalcollections.nypl.org/collections/0f38cb80-c5ae-012f-b01b-58d385a7bc34