Based on wood ice bunker refrigerator cars built in the 1930s to 1940s
 
 Wood cars operated into the 1970s due to superior insulation and corrosion resistance
 
 Correct lower height
 
 Wood sides with correct narrow doors, hinge and latch details
 
 Realistically detailed Dreadnaught steel corrugated ends
 
 Finely detailed AB brake gear
 
 Correct RP-25 turned metal wheels
 
 Proto MAX(TM) metal knuckle couplers
