Issued in 1957, this Soviet commemorative set celebrates the 250th anniversary of Leningrad (now St. Petersburg), presenting iconic landmarks that symbolize the city’s historical and revolutionary importance. The stamps depict the Lenin monument, the famous Rostral Column on Vasilievsky Island, and a panoramic city avenue view, reflecting both political symbolism and architectural heritage. Printed in classic engraved style with ornate frames and the Soviet emblem, the set captures the visual propaganda aesthetic of the period. These mid-century USSR commemoratives are popular among collectors of Soviet topical, architecture, and historical anniversary issues.