PRR N1s
 The Pennsylvania Railroad's N1s was a class of steam locomotive built for Lines West. They were of 2-10-2 Santa Fe wheel arrangement ten driving wheels with a two-wheel leading truck and a two-wheel cast KW-pattern trailing truck under a giant firebox. This arrangement was well suited to the N1s' intended purpose which was as a heavy drag freight engine for coal and iron ore traffic to and from lakeside ports.