Viewing Tower, Saugerties, N. Y.
The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. "Viewing Tower, Saugerties, N.." The New York Public Library Digital Collections. 1870. https://digitalcollections.nypl.org/items/510d47e1-a968-a3d9-e040-e00a18064a99
