ARB. Here is a duplicate 35mm color slide by an unidentified photographer that was taken in Altoona, Pennsylvania, c. 1952. Shown here is Pennsylvania Railroad engine #4472, an I-1SA (2-10-0) "Decapod" built by the Baldwin Locomotive Works as an I-1S during May of 1923, rebuilt in Juniata as an I-1SA in November of 1948, and retired in November of 1958 after 35 years of faithful service. Partially visible in the background is the 8th Street Bridge in Juniata.