Air Post Official stamps. 1922, red surcharge 12m on Consular stamp of 2.25r, three singles, two of type I (positions 12 and 17) and type II (position 18), full OG, LH, VF, all with Soviet Philatelic guarantee on reverse, C.v. $315 (Image)

Air Post Official stamps. 1922, red surcharge 600m on Consular stamp of 3r, type II, full OG, LH, VF, expertized by Z. Mikulski and others, C.v. $260 (Image)