Using off-the-shelf automotive parts where possible had partly enabled drawing up the blueprints quickly. By working backward, Probst and Bantam's draftsmen converted what Crist and a few others had put together into drawings. The hand-built prototype was then completed in Butler, Pennsylvania, and driven to the Army vehicle test center at Camp Holabird, Maryland. It was delivered on 23 September 1940. The vehicle met all the Army's criteria except engine torque. The Bantam pilot (later also dubbed the "Blitz Buggy" or "Old Number One") presented Army officials with the first of what eventually evolved into the World War II U.S. military jeep.