China 1949-50 Unit and Silver Currency Postal History 1949 (November 24) Registered Express Air Mail Cover to Chungking, franked on reverse with Peiping Summer Palace 40¢ Green and Kwangsi 5¢/$40,000/20¢ Dr SYS issue, canceled by Nanning cds, in transit for nearly two months due to ongoing civil war, Chungking arrival on front with Republic 39th year cds, reduced at top, rare usage. Estimate HK$ 10,000-12,000
