thumb|right|300px|Museum LM-57 tramcar in Nizhny Novgorod, Russia.
thumb|right|300px|Museum LM-57 tramcar in Nizhny Novgorod, Russia.
The LM-57 (Russian ЛМ-57) is the Soviet motor four-axle tramcar. First prototype of this vehicle was built in 1957 (hence the 57 in the name) at the Leningrad Wagon Repair Plant (VARZ, ВАРЗ, Ленинградский Вагоноремонтный Завод - Russian abbreviature and full name). "LM" means Leningrad Motor tramcar. The VARZ produced nearly 800 LM-57s in 1957–1968.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).