"February 1911." Oriented with north toward the lower left. "Reproduced from report issued by New York Dock Department." Removed from textual publication. Available also through the Library of Congress Web site as a raster image. Annotated in lead pencil on verso: Microfilm 95/6001 MicRR.
New York (n.y.). Department of Docks and Ferries - Tomkins, Calvin - New York (n.y.). Department of Docks