The caisson - NYPL Digital Collections

One of hundreds of thousands of free digital items from The New York Public Library.

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Manuscripts and Archives Division - NYPL Digital Collections

Divisions - NYPL Digital Collections

The Construction of the Great Bridge, Uniting Brooklyn and New York, NYPR Archives & Preservation

N.Y. Caisson E.R. Bridge with iron lining and shafts in place, but roof timbers not on. - PICRYL - Public Domain Media Search Engine Public Domain Search

Divisions - NYPL Digital Collections

NYPL Digital Collections

NYPL Digital Collections

Collections - NYPL Digital Collections

The Construction of the Great Bridge, Uniting Brooklyn and New York, NYPR Archives & Preservation

The Pyramids of the Cold Section 2 • The Dendera Light

Manuscripts and Archives Division

Engineer Unpacks Plan for the New York Public Library Stacks - WSJ

Collections - NYPL Digital Collections