I happened across this rare set of tracked jeeps made by O’Laughlin (a person or a company?), or it could just be one jeep with successive modifications. I only uncovered a few photos photos and very little information.How experiments on this related to the M-28/M-29 amphibious Weasel are not clear to me, but they appear to have been parallel projects given the Weasel research was begun in 1942.
I found this photo of the tracked jeep at a Cargo & Personnel Carrier site:
http://mailer.fsu.edu/~akirk/tanks/UnitedStates/cargo-personnel/cargo-personnel.html
I found a thread on an argentine model site where someone constructed a look-a-like model.
http://kalkin.foros.ws/t12174/olaughlin-modified-jeep/
This could potentially be the same jeep as above, only it’s rear area has been altered. I can’t quite read the numbers on the hood in the top pic to know for sure.
Finally, there’s a page about a tracked jeep at 42FordGPW, but the page never refers to either vehicle as a Modified vehicle. Perhaps someone can add to this info?