The best I can do is the history of the Jeep.
In 1940, both Willys Ford showed their versions of the Bantam designed Jeep. Willy's caled their's the "Quad" and Ford called their's the "Pygmy".
The Army ordered nearly 8,000 prototypes (2,642 from Bantam, 1,500 from Willy's and 3,700 from Ford, and one by Checker Cab Co) for testing.
In early production their apperance as well as their names were altered.
The Bantam became the 40 BRC.
The Willy's became the MA, which became MB in general production.
The Ford was known as the GP, which became the GPW.
Checker made a 40 BRC.
By July 41, the Army standardized final production numbers as the MB and the GPW. Bantam was cut out and rewarded a contract for 1/4 ton trailers.
A total of 634,569 Jeeps had been built by the end of the war. Of these 2.642 were Bantams (the original group), 350,349 were Willy's and 281,578 were Fords.
No official record exists as to the meaning of the terms MB or GPW. A thousand guys in WW2 will swear the name means ? whatever. Nobody knows for sure. You can take that to the bank.
TTT
......This is definately some food for thought.
.....No offense to you at all,..Razor.