ATM. Rythmatic control, enginering bulletin 2185 BSA. Spare parts list for 500 c.c. S.V., Solo motor cycle, Model WD/M 20, Contract no. S 2603, Frame and engine numbers W.M.20-96818 to W.M.20-104818 Report of the Chief of Engineers U.S. Army : Part 1 Report of the Chief of Engineers U.S. Army reports upon openings in industry suitable for disabled sailors and soldiers Engineering / prep. by the Trade Advisory Committee (Shipbuilding and Engineering Trades) ; and iss. by the Ministry of Labour in collab. with the Ministry … Engineers of the Southwest Pacific 1941-1945 / Hugh J. Casey Engineering manual for War Department construction / War Department , Corps of Engineers Planning / War Department , Corps of Engineers Mechanical design / War Department , Corps of Engineers Sewage and waste disposal / War Department, Corps of Engineers Fuel distribution and storage / War Department, Corps of Engineers Airfield pavement design / War Department, Corps of Engineers