During their long life span, many of the prototype wood reefers were re-built and modernized at various stages of their service life. This new Atlas O version represents a car as it could be seen in the late 1930s and 1940s, after it was outfitted with several upgrades.

Features Include:

- Simulated metal roof
- Raised hatch platforms with simulated hatch plugs
- Brake wheel and brake housing
- Underframe details
- Braking system
- Highly detailed ABS body
- Separately-applied ladders, grab irons and stirrups
- Separately-applied door hinges, handles and latches
- Opening doors
- Separately-applied opening roof hatches, hinges and latches
- Die-cast underframe
- 40-ton Bettendorf-style trucks
- Die-cast articulated couplers (3-Rail)
- Minimum diameter curve (3-Rail): O-31
- Minimum radius (2-Rail): 24"

2-rail versions feature body-mounted scale knuckle couplers and scale 33" wheelsets.

Two road numbers are available per road name.