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Alleghany [sic] Suspension Bridge
[American Scenery. Penn's Railroad]
Library Company of Philadelphia
Gutekunst Pennsylvania Railroad Stereograph Collection, Record number: 000014698
Depicts the elegant wire-suspension bridge spanning the Allegheny River in Pittsburgh, designed by John A. Roebling, constructed 1857-59, and replaced in 1892. Known as the Sixth Street Bridge and the St. Clair Bridge.