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
Picryl description: Public domain photograph of an amusement park, free to use, no copyright restrictions.
Picryl description: Public domain image of a historic building in New York City, free to use, no copyright restrictions.
Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description