Page 32 - Chinese International Airmail to 1949
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1.4.1 Acceleration by Air Mail within China
Flown internally from Hankow to Shanghai, and then surface mail to the USA.
23 Dec 1929 ‑ Hankow to New York, USA.
Rate: International surface [1 Jan 1923 ‑ 30 Jun 1930] $0.10 per oz +
Internal air [8 Jul 1929 ‑ 6 Jul 1930] per 1,500 km per 20g $0.15 +
Registration [1 Feb 1929 ‑ 31 Jan 1929] $0.15 = $0.40.
Backstamps: Shanghai (24 Dec 1929) and New York (18 Jan 1930). Reduced to 75%.
