| Here is another example of a 1917 Alco locomotive built for the Hocking Valley RR coal fields. Specifics - class H-3, 56.25" drivers, impressive 22 psi boiler pressure, 22x32" high pressure cylinders, two sets of 35x32" low pressure cylinders, 367,000 lb engine weight, 73,814 lb tractive effort, C.W. Jernstrom photo |