ZEK - THE SOVIET SLAVE-LABOR EMPIRE AND ITS SUCCESSORS, 1917-2000

Classification

Territory

Russia from 1991 Tsarist Russia and the territory of the former USSR until 1923 USSR (1923-91)

Subject

Censorship History of the post and its operations (incl. a chosen territory) Other postmarks Other types of transport Prisoner of war mail Standard post office postmarks

Time period

World War I Interwar period World War II Late 1940s 1950s (1950–60) 1960s to 1980s (1960–90) Late 20th century

Exhibition class

Non-standard-size exhibits