Drawing, Study for Maximum Mass Permitted by the 1916 New York Zoning Law, Stage 4, 1922; Designed by Hugh Ferriss (American, 1889–1962); Black crayon, stumped, pen and black ink, brush and black wash, varnish on illustration board; 66.8 x 51 cm (26 5/16 x 20 1/16 in.); Cooper Hewitt, Smithsonian Design Museum; Gift of Mrs. Hugh Ferriss, 1969-137-4; Photo: Matt Flynn © Smithsonian Institution

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