1923 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 (Perforated, Full Set) (Image)

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

1924 Lenins Death, Soviet Union USSR (Narrow, Middle Red Frame) (Image)

1924 Lenins Death, Soviet Union USSR (Perforated + Imperforated, Full Sets) (Image)

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

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

1925 20th Anniversary of the Revolution of 1905, Soviet Union USSR (Perforated, Full Set) (Image)

1925 20th Anniversary of the Revolution of 1905, Soviet Union USSR (Imperforated, Full Set) (Image)

1925 The First Anniversary of Lenins Death, Soviet Union USSR (Full Set) (Image)

1925 The First Anniversary of Lenins Death, Soviet Union USSR (Imperforated, Full Set) (Image)

1925 Lenin, Soviet Union USSR (Perforation 13.25, Full Set) (Image)

1925 Founding of the Russian Academy of Science, Soviet Union USSR (Perforation 12.5, Full Set) (Image)

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

1926 Lenin, Soviet Union USSR (Full Set) (Image)

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

1926 Post-Charitable Issue, Soviet Union USSR (no Watermark) (Image)

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

1927 Esperanto, Soviet Union USSR (no Watermark, Full Set) (Image)

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

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

1927 Gold Definitive Issue, Soviet Union USSR (Watermark + no Watermark, Type I) (Image)

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

1927-28 The 10th Anniversary of October Revolution 1917, Soviet Union USSR (Full Set) (Image)