H40331 U.S. Copyright Office. Copyright 1903 by Underwood & Underwood. On mount: Works and Studios, Arlington, N.J., Littleton, N.H., Washington, D.C. No. A1.
H37211 U.S. Copyright Office. Copyright 1903 by Underwood & Underwood. On mount: Works and Studios, Arlington, N.J., Littleton, N.H., Washington, D.C.
Public domain photograph of New York, stereoscopic card, free to use, no copyright restrictions image - Picryl description
H87727 U.S. Copyright Office. Copyright 1906 by Keystone View Company. Public domain photograph of New York, stereoscopic card, free to use, no copyright restrictions image - Picryl description
No. 20762. Public domain photograph of stereoscopic card, free to use, no copyright restrictions image - Picryl description