No. 941, a Prairie-type K1-as, built in 1908 at our shops, was especially used between Minneapolis and the Rockies. It had 63” driving wheels, 21x28” cylinders, was nearly 69’ long. At times, it carried the numbers 2093 and 5593.
from "A Brief History: The Milwaukee Road"
Published by the Chicago, Milwaukee, St. Paul and Pacific Railroad Company in 1968