Detail, PRR K4s-class 4-6-2 Pacific No. 3750 (1920)—Official Steam Locomotive of Pennsylvania
There’s a mystery here: the road number on this badly surface rusted locomotive is clearly 3750. The museum’s website states, in exquisite detail complete with verifying photographs, that K4(s) No. 3750, built in the Altoona shops in 1920, is one of only two surviving K4’s. The other, No. 1361, is owned by the Railroader’s Memorial Museum in Altoona. K4s Number 3750 was completely restored as a display engine in 1983. So, if 3750 was completely restored nearly to running condition 30 years ago, what engine is this in (quite honestly) deplorable shape but bearing 3750 on its cab and smokebox?