Colorado & Southern Railway
Rocky Mountain Railroad Club Excursion - Denver to Longmont - October 25, 1954
Engine 646 - October 1954
Engine 646 - October 1954
Engine 646 - October 1954
Engine 646 - October 1954
Engine 646 - October 1954
Engine 646 - October 1954
Engine 646 - October 1954
Engine 646 - October 1954
Engine 646 - October 1954
Engine 646 - October 1954
Engine 646 - October 1954
Engine 646 - October 1954
Engine 646 - October 1954