Bankers Trust Annex Construction Photographs 1931-33
Photo #063
Photograph courtesy The Skyscraper Museum
 

New temporary timber pile foundations for the derricks are evident in this view looking toward Pine Street. A stationary industrial engine at the center of the photo was probably used to power pumps to remove water from the excavation. It may also have been used to power saws, compressors, and other stationary power tools used to fabricate the frames for the derricks and temporary bracing.