UPDATE: Heres a photo showing a CJ-3A with a Mobile Drill, before it was branded a “Jeep-A-Drill”:
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Originally posted October 2017: Mobile Drilling, Inc., produced this brochure about their Jeep-A-Drill product. there were there models (100-A, 100-b, 200), two powered by hydraulics and the cheapest one, the 100-A, powered by a hand crank.
For comparison, here’s the same drill featured in a special equipment book:
There is a yellow 1960 pickup, with a drill rig, on the St. Louis Craigslist.