The Conjecture Mitigation Task Force has been hard at work. Actually, not a lot of work at all, since the clue is right there on the label...
If you had Googled "brass gondola 98529" you would have received the answer instantly.
The well-intentioned but slightly inexact folks at Brass Guide refer to it as a "G scale" model, BTW.
G Brass Train PSC UP PSC-98529 Precision Scale Co. (brasstrains.com)