ARB. Here is a duplicate 35mm color slide of a photo by Nelson Bowers that was taken in Altoona, Pennsylvania, on 11 November 1952. Shown here (R to L) are Pennsylvania Railroad engines #4314, #9821, and two more "EF" Class units whose numbers are not recorded. #4314 is an I-1SA (2-10-0) "Decapod" built by the Baldwin Locomotive Works as an I-1S during November of 1922, rebuilt in Juniata as an I-1SA in December of 1942, and retired in September of 1959. #9821 is an EF-15A built by GM-EMD in May of 1951, rated at 1,500 horsepower, and retired in December of 1967. Partially visible at the left is a pair of Baldwin-built "Centipedes"; in the middle distance are the Coaling Tipple and the Roundhouse situated in East Altoona. Photo taken from the 8th Street Bridge in Juniata.
17th Street. Here is an original photo that I took in Altoona, Pennsylvania, on 25 April 1964. Shown here (L to R) are Pennsylvania Railroad engines #9536, #9782, and #9821. All were built by GM-EMD and rated at 1,500 horsepower each. #9536 is an EF-15 built in September of 1948 and retired in April of 1965. #9782 and #9821 are EF-15A's. #9782 was built in February of 1951; #9821 was built in May of 1951 and retired in December of 1967. In this context, they're about to pass under the 17th Street Bridge with a 64-car TrucTrain bound for Enola and points East. The cabin car is #477897. Partially visible at the left is ALTO Tower.
Horseshoe Curve-1959. Here is an original photo that I took at the Horseshoe Curve near Altoona, Pennsylvania, on 3 September 1959. Shown here (F to R) is Pennsylvania Railroad engine #9821 and two more units whose road numbers are not recorded. All were built by GM-EMD and rated at 1,500 horsepower each. #9821 is an EF-15A built in May of 1951. They're pulling a mixed-cargo freight train around the Curve and up the Allegheny Mountains to Gallitzin and points West.