[blucar]

I have 3 wide 5 split rim wheels that are similar, but different to the ones posted in the pix. The wheels I have, have the split ring on the inside portion of the wheel.
I have a big interest in early 4x4 vehicles. Anytime I see an EFV8 4x4, pickup, car or station wagon I stop and look it over.
I know where there are two '46-48 Ford club coupes in Montana that are Marmon-Harrington 4x4, both vehicles were bought new by the current owners of the vehicles. The wheels on the coupes are the 36-39 wide five which I have read MH continued to use through '48 on their 4x4 conversions.
I would make a WAG that the split rim wheels were made by an aftermarket manufacture and therefore do not show up in the Ford parts books.
The wheels I have came off of a '37 pickup that I bought as a parts truck, ergo 3 wheels, which I parted out for a '37 pickup I was rebuilding in the mid '60's. I have had the wheels for over 55 years.