40 x 62 cm. Relief shown by hachures. Prime meridians: Greenwich and Washington. Page numbers at top: 58-59. "Entered according to act of Congress in the year 1864 by A. J. Johnson in the Clerk's Office of the District Court of the United States for the Southern District of New York." Original publisher: Johnson and Ward.
From the Howard Cannon Photograph Collection (PH-00192). The group participate in the groundbreaking "New Research Facility for Edgerton, Germshausen and Grier - Airport Industrial Tract"