1925, Academy of Sciences, two complete sets of two, perforation 12½ and 13½ respectively, in addition 3k with comb perforation, full OG, NH or hinged (3k perf 13½), F/VF, Est. $150-$200

100.00

1925, Academy of Sciences, 3k brown, well margined single printed on watermarked Borders and Rosettes paper (horizontal position), full OG, NH, VF and very rare stamp of only a few known, Raritan Stamps guarantee, Est. $2,500-$3,500

1925, Aleksandr Popov, imperforated proof of 7k in red, printed on Goznak thick paper with text on reverse, used in 1949 on registered cover from Moscow to United Kingdom together with two other values (J. Barry's correspondence), appropriate UK blue cross for registered mailing upon arrival, F/VF and rare, Est. $250- $300

200.00

1925, 20th Anniversary of the Revolution of 1905, two pages from a Collection, representing imperforated and perforated complete sets of three, as well as all recorded perforation varieties and horizontal pair imperforated between stamps and on the right, full OG, NH or LH (2), VF, Est. $250-$300

150.00

1925, Centenary of the Decembrist Revolt and 20th Anniversary of the Revolution of 1905, 3k-14k, two perforated complete sets of three, used on registered cover from Leningrad to Germany in 1931, arrival ds is on reverse, mostly VF, RES $150-$200

100.00