CR. GP35 #2333, CN GR-20b #5517, U23B #2742, Altoona, PA. 8/15/77

Ec Penn Central GP35 #2333, Canadien National GR-20b #5517, ex-Penn Central U23B #2742 with freight at  C.P. Works, Altoona, PA. Photo taken from footbridge at Works.on August 15, 1977. Saw some leased power in the area in 1977.