50' ACF Exterior Post Boxcar - Railbox #30091 (yellow, black door; small logo, slogan) (HO) #1864 by Walthers

Serve shippers on your HO railroad with these WalthersMainline 50' ACF Exterior-Post Boxcars. Responding to a growing shortage of serviceable cars, ACF and other builders unveiled a new generation of bigger equipment in the 1970s with increased width and height to improve carrying capacity. Today, they're still in service for Railbox and many other roads, where they can be found moving all types of cargo. Features of these models include:
One time run of these roadnumbers, order now - limited quantity available
Prototypes seen from coast-to-coast 1974 to the present
Handles all types of general freight loading
Used by Railbox and dozens of other railroads
Correct Plate B dimensions:
41' 3" Truck Centers
15' 2" Tall
10' 8" Wide
Fully assembled
Correct 33" RP-25 metal wheelsets
Proto MAX(TM) metal knuckle couplers