Those damn Hemis were everywhere in the 50's Wanna race? http://sfbay.craigslist.org/sby/cto/3453765683.html
I worked at a Mack Truck dealership in the early eighties that used one of those Chrysler airport tugs to move non running trucks around the shop and lot. It was similar to the one shown above, but only had a flathead 6 powerplant.
I saw that thing a few years back out in Monterey or Pacific Grove...Christmas parade I think. Wow..piece of history there!