Page 30 - Chinese International Airmail to 1949
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1.4.1 Internal Acceleration by Airmail
Rate 1: 1 Jul 1931 to 31 May 1935 (1,431 days). Air in both China and USA. Surface first 20g $0.25
17 May 1934 ‑ Peiping to Brookline, USA. Backstamped at Shanghai (18 May). China internal air surcharge $0.25 per 20g per Zone;
USA internal air surcharge $0.54 per 15g. Peiping to Shanghai less than 1,000 km, so one zone. Rate $0.25 + $0.25 + $0.54 = $1.04.
Rate 4: 1 Sep 1939 to 31 Oct 1941 (792 days). Air in China only. Surface first 20g $0.50
11 Feb 1941 ‑ Kunming to Brooklyn, USA.
Backstamped at Hong Kong (14 Feb).
Boxed NOT OPENED BY CENSOR applied in Hong Kong.
Air in China, internal air surcharge $0.25 per 10g.
Surface across Pacific and USA.
Rate $0.50 + 2 x $0.25 = $1.00.
