HO Scale UNION PACIFIC EXCURSION Lightweight Smoothside Passenger Car 4-Pack. Equipped w/ Interiors, Knuckle Couplers, and Metal Wheels. By Rivarossi — R6998, Set B. Baggage — “Pony Express”. “City Of Portland”. Vista Dome — “City Of Denver”. Cars are in Like New Condition (C-8). It looks like they haven’t been rolled. Your Satisfaction Is Guaranteed.