The Medal "In Commemoration of the 250th Anniversary of Leningrad" (Russian: Медаль «В память 250-летия Ленинграда») was a state commemorative medal of the Soviet Union established by decree of the Presidium of the Supreme Soviet of the USSR on May 16, 1957 to commemorate the 250th anniversary of the city of Leningrad. It was awarded to prominent members of Soviet society including veterans of the Great Patriotic War and serving members of the armed forces for wartime and peacetime services to the Hero-City of Leningrad. Source: Wikipedia (en)