Page 108 - Chinese International Airmail to 1949
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3.3.12 Gold $ Rate UOR 22: 17 Apr 1949 to 28 Apr 1949 (12 days). Surface first 20g $11,000 Air per 10g $30,000 27 Apr 1949 ‑ Chengtu to Whitewater, USA. No backstamps. Double rate letter $11,000 + 2 x $30,000 = $71,000.
