I remember reading a terrific article in Trains magazine I think it was from back in the early 1970s. It told the fireman's story of he and the engineer being called to fire up one of the last PRR T1's to take over a mail train double headed by two K4s that were having difficulty in Crestview OH if I remember correctly. They hauled the train to Ft Wayne and twisted the speedometer over the top on the final stretch of perhaps 30+ miles. He said 'the telephone poles literally looked like a picket fence' and they estimate that they were traveling in excess of 130 mph!
Have loved that steamer ever since...
