A 7 and 1/2" guage live steam Pennsylvania Railroad K-4 class 4-6-2 Pacific type locomotive. The Hesston Steam Museum. Hesston Indiana USA. Oct 1998.

I visited the Hesston Steam Museum in northwest Indiana, on a lovely and colorfull Autum day, in October of the year 1998.
Seen here between runs on the miniature 7 and 1/2" inch track guuage live steam railroad, is a working live steam model of a Pennsyvania Railroad K-4 class Pacific type passenger service locomotive. This locomotive, just like it's full sized prototypes were from the 1920's to the end of steam on the PRR in 1957, is fast and very powerfull. The PRR K-4 were finely crafted machines. Two of the prototypes are preserved.