| Long before an SD40 unit wore the number, this 1910 Alco-Brooks Pacific did. Originally it was #6126 but was superheated by the Milwaukee shops in 1920 and renumbered in 1938. Specifics - F3 class, 79" drivers, 200 psi boiler pressure, 23x28" cylinders, engine weight of 247,300 lb, tractive effort of 31,874 lb. No date given so an approximate one used. Unknown photographer |