1921 Curtiss Jenny, 15c-90c lower right imprint and Plate No. horizontal pairs, l.h. or n.h., v.f. (catalogued as hinged singles) cat. $460 (Cat No. C1-5) (Image)

Cat. $460, Est.US$200

1921 Curtiss Jenny, 15c-90c upper right imprint and Plate No. blocks of four, some hinge reinforcements at right, left pairs n.h., v.f. (catalogued as hinged singles) cat. $920 (Cat No. C1-5) (Image)

Cat. $920, Est.US$500

1921 (1 July) First Flight "Aerial Postal Service Established in China" Peking to Tsinan (2 July), with special cachet, v.f. (Image)

Est.US$250

1921 (1 July) First Flight from Shanghai to Peking, cover with special cachet applied to 15c Airmail stamp, additional franking alongside, v.f. (Image)

Est.US$250

1931 (31 May) registered, flown cover with attractive franking (C6-10), Shanghai, Nanking, Tsinan, Peiping, Linse, Manchouli, via Trans-Siberian Railway Manchouli to Moscow and from there by Air to Berlin, arriving on 12 June, 1931, fine cover (Image)

Est.US$250