A LOOK THROUGH THE JUDAS HOLE, THE IMPERIAL RUSSIAN PRISON SYSTEM AND CENSORSHIP

Classification

Territory

Tsarist Russia and the territory of the former USSR until 1923

Subject

Censorship History of the post and its operations (incl. a chosen territory) Other postmarks Postal forms and labels Prisoner of war mail Standard post office postmarks World War I

Time period

Late 19th century Early 20th century (until World War I) World War I

Exhibition class

Non-standard-size exhibits