SU
Union of Soviet Socialist Republics
1922 - 1991
Note: Many Soviet era plates issued after 1959 became invalid in the majority of post-Soviet republics nevertheless some of them may still be legally displayed on vehicles (mainly in Russia).
Final series for foreigners (1980 - 1991), H = foreign specialists, foreign nationals, hire cars for foreigners, 691 = LITHUANIA
Final series for foreigners (1980 - 1991), P = vehicles leaving the U.S.S.R. or bought with foreign currency, 514 = Moscow city, RUSSIA
Final diplomatic series (1980 - 1991), D = Diplomatic Corps, 092 = Czechoslovak embassy
Series for traffic police vehicles (1970 - 1989), VAI / ГАИ = State Automobile Inspection (Traffic police), used exclusively in LITHUANIA (Vilnius), 002 = Deputy Chief of Lithuanian GAI
Final series for military vehicles (1962 - 1991), rear plate, probably uncoded