Not to be confused with the Athearn-made examples from the early 1970s, a similar boxcar model arrived in Cox’s line for 1974. Made in Hong Kong, this model presented a sliding door 40-foot boxcar. The U.S. cataloged separate sale releases included a red Chicago, Burlington & Quincy and a brown Northern Pacific. For a military-themed train set in 1976, Cox included a U.S. Army decorated 40-foot boxcar. The Canadian Cox line included more 40-foot boxcars, including a brown Canadian National, green CP Rail, yellow with black roof Ontario Northland, and Gusto billboard red, white, and green example from the Robin Hood promotional set, which was also listed as a separate sale release.
Canadian National
No. 612082 Canadian release

Chicago, Burlington & Quincy
No. 6120-6 -1974 release
CP Rail
No. 612083 Canadian release

Gusto
No. 612084 Canadian release
Northern Pacific
No. 6120-5 -1974 release
Ontario Northland
No. 612081 Canadian release
U.S. Army
No. 6120-7 -1976 release