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

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

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

1925 Postage Due, Soviet Union USSR (Typography+Lithography) (Image)

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

1927 The 40th Anniversary of the Creation of the International Language, Soviet Union USSR (with Watermark, MNH) (Image)

1928 The Eleventh Issue of the USSR 'Gold Definitive Set', Soviet Union USSR (Type II, Full Set, MNH) (Image)

1929-30 For the Industrialization of the USSR, Soviet Union USSR (Full Set, MNH) (Image)

1930 Post-Charitable Issue, Soviet Union USSR (Full Set, MNH) (Image)

1930 The First All-Union Educational Exhibition at Leningrad, Soviet Union USSR (Full Set, MNH) (Image)

1933 Red Banners Order, Soviet Union USSR (Full Set, MNH) (Image)

1933 The All-Union Philatelic Exhibition in Leningrad, Soviet Union USSR (Full Set, MNH) (Image)

1934 The Birth Centenary of D. Mendeleyev, Soviet Union USSR (Full Set, MNH) (Image)

1935 The 60th Anniversary Birthday of Kalinin, Soviet Union USSR (Full Set, MNH) (Image)

1936 Centenary of the Dobrolyubovs Birthday, Soviet Union USSR (Full Set, MNH) (Image)

1936 Pioneers Help to the Post, Soviet Union USSR (Perf 11 + 13.75, MNH) (Image)

1937 Aviation of the USSR, Soviet Union USSR (Full Set, MNH) (Image)

1938 Anniversary of the Poem `Knight in the Tiger Skin`, Soviet Union USSR (Full Set, MNH) (Image)

1938 The First Trans-Polar Flight From Moscow to Portland, Soviet Union USSR (Full Set, MNH) (Image)

1938 The 20th Anniversary of the Red Army, Soviet Union USSR (Full Set, MNH) (Image)

1938 The Children of the USSR, Soviet Union USSR (Full Set, MNH) (Image)

1938 The Air Sport in the USSR, Soviet Union USSR (Full Set, MNH) (Image)

1938 Crimea and Caucasus, Soviet Union USSR (Full Set) (Image)

1938 Russians Participation in the Paris Exhibition, Soviet Union USSR (Full Set, MNH) (Image)

1938 Of the Soviet Drift Station `North Pole-1`, Soviet Union USSR (Full Set, MNH) (Image)