H61304 U.S. Copyright Office. No. 8530. Public domain photograph of monument, historic place, stereoscopic card, free to use, no copyright restrictions image - Picryl description
H53794 U.S. Copyright Office. No. 54. No. 2. Public domain photograph of monument, historic place, stereoscopic card, free to use, no copyright restrictions image - Picryl description
H52585 U.S. Copyright Office. No. 8523. Public domain photograph of a landmark building, world heritage site, stereoscopic card, free to use, no copyright restrictions image - Picryl description
H53673 U.S. Copyright Office. No. 8513. Public domain photograph of monument, historic place, stereoscopic card, free to use, no copyright restrictions image - Picryl description
H52782 U.S. Copyright Office. No. S.155. Public domain photograph of a landmark building, world heritage site, stereoscopic card, free to use, no copyright restrictions image - Picryl description
H52584 U.S. Copyright Office. No. 8522. Public domain photograph of a landmark building, world heritage site, stereoscopic card, free to use, no copyright restrictions image - Picryl description