MASTER MODEL FEATURES • Thin endrails • Roofwalk where appropriate • Accurate painting and lettering • Roller-bearing caboose trucks • Window glazing • Metal knuckle couplers • Separate brake cylinder • Open smoke stack • Triple valve and air reservoir PROTOTYPE INFORMATION Based on prototypes that were built during the 1960s these cabooses were popular on railroads from coast-coast. With the advancement of the End-of-Train device cabooses slowly began to fall out of favor. However in the early 2000’s "shoving platforms" began to appear as a place to safely house a crew when a reverse move was required. Instead of riding on the side of a freight car the crew member now has a safe place to stand while guiding the rear of a reverse move. Atlas’ shoving platform cabooses will feature blanked out windows (Where appropriate).