- External links
{{unref|date=July 2016}}Ečs (81-709) is the oldest type of Soviet metro rolling stock. They were built for the Prague Metro, where they were in service from 1974 to 1997. The cars were built in Metrovagonmash near Moscow, Russia. External links {{commons category|Ečs in Prague}}- Rolling stock Ečs at metroweb.cz – history, information and photos (Czech)
{{Rolling stock of Russia|state=collapsed}}{{DEFAULTSORT:Metrovagonmash Ecs}}{{Russia-rail-transport-stub}}{{metro-stub}} 2 : Multiple units of Russia|Train-related introductions in 1974 |