Co. built 83 0-6-0T locomotives. One hundred 2-6-2T of the American standard military design were later purchased from Alco's Cooke Locomotive Works for British use. Britain pioneered the use of petrol-powered, 4-wheel synchromesh mechanical drive locomotives (known as tractors) for daylight use within visual range of the front. In 1916 the War Office required "Petrol Trench Tractors" of 600-mm gauge that were capable of drawing 10 to 15 tons at per hour. Early tractors weighed 2 tons. Total production was 102 Ernest E. Baguley tractors, 580 Motor Rail tractors and 220 Motor Rail tractors. An additional two hundred petrol-electric tractors were produced by British Westinghouse and Dick, Kerr & Co. Former British trench railway equipment was put to civilian use rebuilding Vis-en-Artois between Arras and Cambrai. Twenty Hudswell-Clarke and Barclay 0-6-0T, seven Alco 2-6-2T and 26 Baldwin 4-6-0T engines saw service until 1957. American equipment Baldwin Locomotive Works produced 2-6-2T numbered 5001-5195. Number 5195 was sent to Davenport Locomotive Works as a pattern for their production of the design, while another was sent to the Magor Car Corporation to test operation of their military railway car production. Two were lost at sea, and the remaining 191 saw service with the U.S. Army in France. Locomotives were initially painted grey with black smoke boxes. White lettering was applied to early production, but black lettering was used in France. Baldwin also built and 4-wheel gasoline mechanical locomotives for the U.S. Army. The lighter locomotives were numbered 8001-8063. The heavier locomotives were numbered 7001-7126 and operated at (), roughly the speed of a slow jogger. The standard American military railway car was wide and long riding on two 4-wheel archbar bogies. 1,695 of these cars were built by the Magor Car, American Car and Foundry and Ralston Steel Car Company. Most were flatcars, but some had gondola sides, others had roofs (either with open sides or like conventional boxcars) and others carried shallow rectangular tanks with a capacity of of drinking water. The boxcars and tank cars were regarded as top-heavy and prone to derailment; so most loads were carried on flatcars and gondolas. Approximately 1,600 4-wheel side dump cars were produced in several versions for construction earthmoving. The total number of cars shipped to Europe was 2,385. Davenport Locomotive Works built one hundred 2-6-2T and Vulcan Iron Works built thirty more. Whitcomb Locomotive Works built 74 4-wheel gasoline mechanical locomotives. None of