Air Post Official stamps. 1922, red surcharges 12m, 24m or 120m on Consular Fee stamps, set of three values, first one is type IV, others type I, full OG, NH, VF, each one with Soviet Philatelic guarantee hs, SC #SI5-7 (Image)

Air Post Official stamps. 1922, red surcharge (type I) 1200m on Consular stamp of 10k, surcharge position 2 of 25-stamp setting, full OG, previously hinged, VF, SC #SI9 (Image)

Air Post Official stamps. 1922, red surcharge (type III) 1200m on Consular Fee stamp of 2.25r, position 5 of 25-stamp setting, full OG, very light trace of hinge, VF, Soviet Philatelic guarantee hs, N. Mandrovski certificate, SC #SI11 (Image)

Air Post Official stamps. 1922, red surcharge (type I) 1200m on Consular Fee stamp of 3r, top left corner sheet margin single from position 1, left margin reinforced by very light hinge, full OG, VF and a gorgeous piece, expertized by Roumet and Romeko, SC #SI12 (Image)