| Unidentified photographer Blondin. [Tightrope walker dangling from a wire over the Niagara.] 1860 (ca) Stereoview NYPL - New York Public Library Robert N. Dennis collection of stereoscopic views, Catalog Call Number: MFY Dennis Coll 91-F70, Record ID: 738371, Digital ID: G91F070_119F LL/119682
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