Sale No: 94
Lot No:83
Symbol:C
Cat No:Sc. # 251 x2, 255, C
Second Air Post issue. 1931 (April 14), First Flight Beijing - Nanking registered cover, franked by eight stamps, including the second air post set of 10c-90c, Nanking arrival and all appropriate markings are alongside, minor conveyance flaws, still F/VF and scarce franking, Est. $300-$400 (Image)