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In 1922, a new plan relation to the flat trunk line electrification of iniand railway by Japanese Ministry of Railway (J.M,R.) had started. For the purpose of accomplishment of this new plan, J.M.R. imported fifty-nine direct current type electric iocomotives three times from European and Arnerican electric locomotive builders. in these imported foreign electric locomotives, American made four kinds ofelectric locomotives presented good results to railway engineers ofJ.M.R.So, railway officers and engineers censtructed and started design project on the