by Allen Hazen
844's record of continuous service is truly inspiring, and tourist railways probably shouldn't count, but I suspect there are tourist/museum railroads still using Alco RS-1 for power: and, though the individual locomotives used may be newer, as a TYPE the RS-1 is older than the FEF-3. (Now, if the B&O museum would fire up CNJ 1000 to pull a couple of cars around the yard in Baltimore…(Grin!))