Bureau of Standards. Aerial view of Bureau of Standards

Public domain aerial photograph, no copyright restrictions image - Picryl description

The Theodor Horydczak Collection is a collection of photographs taken by Theodor Horydczak (1890-1971) a Polish-born American photographer who worked in Washington D.C. from the 1910s to the 1950s includes images of Washington, D.C. history, street scenes, government buildings, landmarks, public events, and portraits.