| George Barker Samuel John Dixon Crossing Niagara Falls Below the Great Cantilever Bridge 1895 Albumen prints, stereoscopic 8.10 x 7.70 cm National Galleries of Scotland Courtesy of the National Galleries of Scotland (Accession no. PGP R 860), Gift of Mrs. Riddell in memory of Peter Fletcher Riddell 1985 LL/6822
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