The striking semi-streamlined P36, named after its Kolomna project number and nicknamed Pobeda (victory), was the USSR's final express passenger steam locomotive. Slightly less powerful but faster than the IS , it was an impressive modern design fitted with roller bearings throughout and a mechanical stoker. It was normally painted in the standard Soviet passenger green or an eye-catching blue livery, and its appearance on the prestige Moscow-Leningrad expresses in the 1950's as well as its work on the Moscow-Belorussia, Moscow-Ukraine and trans-Siberian routes naturally ensured that it became one of the best known Soviet steam types. P36 0064 and 0050 are preserved .