That is a class HTh hopper, no never done in HO scale (hint), nor the trucks. A useless bit of knowledge, only two sets of those trucks are known to exist. One set is at the RCT&HS museum in Hamburg PA, and the other set resides under a flat car at the Strasburg Railroad. Lastly, don’t hold me to this, but I believe that is the St. Clair PA scale house.

Bill Dale