ave let sky ▁Rail ▁Terminal ▁in ▁Moscow . ▁The ▁locomot ive ▁was ▁the ▁first ▁Russian ▁steam ▁locomot ive ▁preserved . ▁ ▁Background ▁and ▁history ▁The ▁Russian ▁locomot ive ▁class ▁U ▁was ▁a ▁four - cy l inder ▁de ▁G le hn ▁comp ound ▁locomot ive , ▁which ▁first ▁appeared ▁in ▁ 1 9 0 6 . ▁ 6 2 ▁class ▁Us ▁were ▁built ▁between ▁ 1 9 0 6 ▁and ▁ 1 9 1 6 ▁at ▁the ▁P util ov ▁factory ▁( l ater ▁the ▁K iro v ▁Plant . ▁By ▁the ▁beginning ▁of ▁ 1 9 4 0 ▁the ▁invent ory ▁still ▁listed ▁ 4 7 ▁class ▁U ▁locomot ives . ▁The ▁last ▁locomot ives ▁were ▁with dra wn ▁in ▁ 1 9 5 2 . ▁U - 1 2 7 ▁is ▁famous ▁for ▁being ▁Vladimir ▁Len in ' s ▁locomot ive , ▁hence ▁its ▁pres ervation . ▁It ▁was ▁used ▁to ▁bring ▁his ▁body ▁back ▁to ▁Moscow ▁for ▁his ▁fun eral . ▁For ▁this ▁reason ▁it ▁has ▁escaped ▁the ▁rav ages ▁of ▁time ▁and , ▁much ▁like ▁Len in ▁himself , ▁it ▁was ▁preserved ▁in ▁perfect ▁condition . ▁It ▁has ▁not ▁moved ▁since ▁ 1 9 4 8 . ▁ ▁U - 1 2 7 ▁was ▁the ▁Soviet ▁Union ' s ▁first ▁and , ▁until ▁the ▁ 1 9 8 0 s , ▁only ▁preserved ▁Russian ▁locomot ive . ▁ ▁The ▁only ▁other ▁preserved ▁locomot ive ▁was ▁H 2 . 2 9 3 ▁at ▁Finland ▁Station ▁in ▁L ening rad /