There are obviously 3 patterns for wheel. I believe the 1950s ones have a small hole in the rim approx 1/8" diameter near the raised center.
The CDN3 has definative weld lumps near the center. I cannot remember off hand what the CDN2 rim has that makes it stand out.
I have some of each, when I am back home maybe I can get some pics to demonstrate the differences.
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3RD Echelon Wksp
1968 M274A5 Mule Baifield USMC
1966 M274A2 Mule BMY USMC
1966 M274A2 Mule BMY USMC
1958 M274 Mule Willys US Army
1970 M38A1 CDN3 70-08715 1 CSR
1943 Converto Airborne Trailer
1983 M1009 CUCV
1957 Triumph TRW 500cc
RT-524, PRC-77s,
and trucks and stuff and more stuff and and.......
OMVA, MVPA, G503, Steel Soldiers
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