We use the Stamp Catalogue of China 2010 (also known as the "Chan Catalogue") as a reference, as it is the most complete and accurate reference book on Chinese Philately. The item "CHINA- COILINGS 30 & 50cts- MINT- VERY FINE" is in sale since Thursday, February 1, 2018. This item is in the category "Stamps\Asia\China".
The seller is "jmcoins2009" and is located in Presinge. This item can be shipped worldwide.