The photo is of a model (Roco N scale) but my question is: does anyone know what prototype hopper this is modeled after? (There may be no specific prototype, but it's definitely not Pennsy.) I am asking for proto info, not for what I can do with the model.
Here is some info. I hope it helps.
http://crcyc.railfan.net/crrs/hop/hopindex.html
STAR TREK 40TH ANNIVERSARY