Files of the company, 1911-1920, much of which consists of unsucessful architectural bid documents, each noting the architect, building, and location, as well as estimated costs, sketches, and related correspondents. These bid documents represent commissions not awarded to NYATCC, and do, in some cases, indicate the outcome of the bid. Architects represented include McKim, Mead & White; Cass Gilbert; George Post; D.H. Burnham & Company; Warren & Wetmore, Schwartz & Gross, and many others. Also includes correspondence and office memoranda, including some describing the formative years, 1911-1914, of the National Terra Cotta Society, trade catalogs, and job photographs. Also, two albums containing photographs of sample pieces of terra cotta, and month by month construction records for three buildings, including the American Theater (42nd Street, New York, 1892) by Charles Coolidge Haight; the Renaissance Apartments (Brooklyn, N.Y., 1889) and the Imperial Apartments (Brooklyn, N.Y., 1890) both by Montrose Morris.

Also, McKim, Mead & White; Pearsall and Mills; Boring and Tilton; Peabody, Wilson and Brown; Holabird and Root; John B. Peterkin; York and Sawyer; Jackson, Robinson and Adams; George Vernon Russell; John H. Barry; Pliny Rogers; Allen and De Young; Augustus N. Allen; Henry Ives Cobb, Jr.; Bottomley, Wagner and White; Andrew J. Thomas; Harvey Stevenson; R.A. Tissington; John C. Dodd; Walker and Gillette; Grosvenor Atterbury, John Tompkins Assoc.; Donn Barber; Wakefield Worcester; Farrar and Watmough; Henry Wright II; Ralph Thomas Walker; Schultze and Weaver; Henry B. Marsh; Hunter McDonnell; and a few unidentified architects