LM-33 and LP-33 were built between 1933 and 1939. Выпускались ЛМ-33 и ЛП-33 с 1933 по 1939 годы.
LM-33/LP-33 trains were operated in Leningrad from 1933 until March 18, 1979. Поезда ЛМ-33 — ЛП-33 работали в Ленинграде с 1933 года по 18 марта 1979 года.