That's an easy one, it's a PRR H1.
http://prr.railfan.net/diagrams/PRRdiagrams.html?diag=h1_oldi.gif&sel=ste&sz=sm&fr=
There you go whoever wants to make it, a drawing too. It's somewhere way down my list, but only if I'm forced to do it because nobody else does. Cumberland Valley had a few of those H-1s, and some of the similar H-2s. If anybody does the PRR one, I'll send some pictures of the CV versions.