China - Aitmail: 1934/37, Tokyo-Peiping friendship flight cover with "Tokyo CPO
China - Aitmail
1934/37, Tokyo-Peiping friendship flight cover with "Tokyo CPO 9.9.5" (Sept. 9, 1934) commemorative dater and red ms. "Peiping flight" with "PEIPING 10.9.23" arrival on reverse.
- Also 1937 Huitung company pictorial hs. "Opening of China-Japan express air route / Huitung aviation co. / 12.6....