| Here is page 18 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. Bottom Photo, Revised Caption: "This is Train No. [4], the eastbound Pennsylvania Limited, rounding the Curve with two Class K-4 locomotives headed for Altoona in 1923. Its destination is New York City." The road numbers of the locomotives pictured here are not recorded. |