Please answer the following question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. ER1 electric trainset - ER1 electric trainset was manufactured by Rigas Vagonbuves Rupnica from 1957 till 1962 for suburban commute usage within Soviet Union on lines electrified on 3000 V DC.
Answer:
Mean Of Transportation