China 1949-50 Unit and Silver Currency Postal History 1949 (September 22) Cover from Hoiping to Hong Kong, franked with Kwangtung Domestic Ordinary Unit Stamp (Chan S91), canceled by Kwangtung Hoiping agency postal marking, rare, addressed to a wealthy merchant and murder victim of the famous ´Three Wolves´ case in the 60´s. Estimate HK$ 1,200-1,800
