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History
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Longfellow School (1902), National Register of Historic Places
Longfellow School (1902), National Register of Historic Places
Neighborhood street in western Swissvale
Neighborhood street in western Swissvale
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US&S head office located in Swissvale, Pennsylvania, as seen in 1929
US&S head office located in Swissvale, Pennsylvania, as seen in 1929
US&S signal bridge, pictured in 1913
US&S signal bridge, pictured in 1913
US&S position light signal, 1922
US&S position light signal, 1922
Mechanism of a searchlight signal made by Union Switch & Signal in 1944 for the Rock Island Railroad
Mechanism of a searchlight signal made by Union Switch & Signal in 1944 for the Rock Island Railroad