Most of the M38 and M38A1 rims were made by Kelsey Hayes. and most not all are stamped so.
WW2 jeeps used a split 2 piece combat wheel that was bolted together. Also used 600-16 tires.
M38 and A1 used a one piece wheel and 700-16 tires. The M100 trailer same wheel.
Military ones:
Some (not all) have a small 1/8 drilled hole in the bolt circle. (purpose unknown)
The valve stem lines up with a bolt hole on military ones.
The military ones wee riveted together.
Civy ones
Valve stem does not line up with bolt hole.
Were welded together.
may have some goofy clips or bumps to hold a hubcap.
Came in 15 or 16 inch.
What Ive run across over the years. Hope this helps.