1929 All-Union Pioneer Meeting, Soviet Union USSR (Full Set) (Image)

1929 Post-Charitable Issue, Soviet Union USSR (Full Set) (Image)

1929 For the Industrialization of the USSR, Soviet Union USSR (Full Set) (Image)

1928-29 Lenin, Soviet Union USSR (Full Set) (Image)

1928 The 10th Anniversary of Red Army, Soviet Union USSR (Full Set) (Image)

1927-28 Definitive Issue, Soviet Union USSR (Full Set) (Image)

1927 The 10th Anniversary of October Revolution 1917, Soviet Union USSR (Full Set) (Image)

1927 Post-Charitable Issue, Soviet Union USSR (Full Set) (Image)

1927 Airpost Conference, Soviet Union USSR (Full Set) (Image)

1927 Esperanto, Soviet Union USSR (Full Set) (Image)

1926 Internatuonal Proletarian Esperanto Congress, Soviet Union USSR (Full Set) (Image)

1925 30th Anniversary of the Invention of Radio by Popov, Soviet Union USSR (Full Set) (Image)

1925 Centary of Decembrist Revolution, Soviet Union USSR (Full Set) (Image)

1925 Founding of the Russian Academy of Science, Soviet Union USSR (Full Set) (Image)

1924 Airmail, Soviet Union USSR (Full Set) (Image)

1924 Airmail, Soviet Union USSR (Full Set) (Image)

1923 Agricultural and Craftsmanship Exhibition, Soviet Union USSR (Full Set) (Image)

1923 Agricultural and Craftsmanship Exhibition, Soviet Union USSR (Corner, Full Set) (Image)

1923 Definitive Set (Litho) (Image)

1923 Definitive Set (Typo, Corners) (Image)

1926 Post-Charitable Issue, Soviet Union USSR (with Watermark) (Image)

1939-40 The USSR Pavilion in the New York World Fair, Soviet Union USSR (Perforated, Full Set, MNH) (Image)

1939-40 The USSR Pavilion in the New York World Fair, Soviet Union USSR (Imperforated, Full Set, MNH) (Image)

1939 The 125th Anniversary of the Lermontov Birth, Soviet Union USSR (Full Set, MNH) (Image)

1939 Aviation Day of the USSR, Soviet Union USSR (Full Set, MNH) (Image)