| Here is page 22 of a 64-page booklet published by Harry P. Albrecht entitled "World Famous Horseshoe Curve, Altoona, Pennsylvania Railroad." It was first issued in September of 1973. Top Photo: Shown here is Pennsylvania Railroad engine #6783, an M-1A (4-8-2) "Mountain" built by the Lima Locomotive Works during March of 1930, rebuilt as an M-1B in January of 1947, and retired in September of 1959. Bottom Photo: Shown here is PRR engine #6713, an M-1A (4-8-2) "Mountain" built by the Baldwin Locomotive Works in April of 1930, rebuilt as an M-1B in August of 1944, and retired in December of 1956. Both photos taken by H.W. Pontin in July of 1940. |