International Bay Window Caboose - Ready to Run -- Union Pacific(R) 24592 (Armour Yellow, red; Safety Slogan)Product Information Make safety first along your HO railroad with WalthersMainline International Bay Window Cabooses on the job. A standard car style for many roads, the prototypes protected freight trains from the 1950s to the 1980s, and some are still in service as maintenance equipment, or "shoving platforms" on locals where frequent reverse moves are needed. Features of these railroad ready models include: Detailed bay window, roof, and underbody