ventilator, primer, hood insulation blanket, radiator blanket, a body enclosure kit, defroster/deicer, and snow chains. These kits were however frequently unavailable, so units took their own measures in the field, particularly improvising various body enclosures, to protect the crew from extreme weather. In addition, two companies fabricated snowplows for the jeep. Geldhill Road Machinery Company made the 7T1NE plow, an angled single blade, while the JV5.5E was a V-shape design. The Wausau Iron Works built two similar designs, designated as the J and JB snowplows. Neither of these seem to have been commonly issued in combat. Photos of snowplows in use in the European theater mostly show improvised plows, likely adaptations of snowplows locally found at hand. Further development of the jeep Although no other light jeeps were taken into production, it was not for lack of trying. Both key military men, who had been championing the development of military vehicle concepts they had formulated for years – sometimes already since World War One – had led to conclusions about the logic of military mechanization, as well as automakers large and small, who now saw that in wartime, all of a sudden there were budgets available to work with. Of course, this was primarily true for the firms involved so far. After losing out on mass production of the four-wheel drive -ton, Bantam built the Army one 4x2 quarterton chassis in 1942, but to no further consequence. An exception was an order for a series of some 200 to 500 standardized jeeps to be modified, by Holden (then G.M. of Australia), into field ambulances for the U.S. Marine Corps in the Pacific Theater, because they found the standard ton Dodge WC-54 ambulances too unwieldy, and even their own ton, 4x4 International M-1-4 vehicles both too ponderous and too scarce. In 1942, Lt. Cmdr. French Moore, MC, a battalion surgeon with the 2nd Marine Division (Camp Elliott, CA) started developing his design for an MB/GPW-based 'light field-ambulance'. He submitted blueprints, and records of the performance of his prototype to Marine Corps Commandant Lt. Gen. Thomas Holcomb. It could carry up to "35 patients 1,000 yards and return, in an hour." Rebuilt to Moore's design, it was approved for fielding in time for the Solomon Island Campaign in 1943. Three series were built in modest numbers but totaling more than the USMC's own ambulance versions of their International M-1-4 and M-2-4s. Lightweight