Posted by Bradley James on August 12, 2012 at 11:44pm
What the drill rig I uploaded looked like when originally manufactured in 1902.This cut is from an ad in the April 1902 issue of the Petroleum Gazette. This Keystone model was a favored oil drilling machine of that time. At the same time Keystone was very active in making and selling prospecting machines for coal, zinc, lead and gold which were used all over the world
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