Specifications for building and launching the wooden caisson for the foundation of the New York tower of the East River Bridge,, undated [circa 1870-1871]

Specifications for building and launching the wooden caisson for the foundation of the New York tower of the East River Bridge,, undated [circa 1870-1871], Box: 10, Folder: 45. Roebling Family Collection, MC 654. New Brunswick Special Collections. https://archives.libraries.rutgers.edu/repositories/11/archival_objects/323518 Accessed October 02, 2024.