Once again, I want to thank everyone who has taken the time to chime in here and educate someone such as myself about this product line. I really had no idea.
In fact, I just received another example of their die cast 2 bay hopper; this is in Pennsy colors, and even has little air brake hoses next to the coupler. My previous 2 bay (CB&Q) does not; nor do I see any tabs were they might be attached. This seems strange, since they have the same prefix number (K6255)...
Mark in Oregon