1. Philatelic 72/22/1/38 Reference (shelfmark): Philatelic 72/22/1/38 Title: The People's Republic of China Postage Stamp Issue: 10th Anniversary of Chairman Mao Zedong's 'May 7' Directive Scope & Content: Stamps designed by Liu Shuoren. Manufactured by the Beijing Postage Stamp Printing Works using a photogravure printing process. Collection Area: Philatelic Collections Languages: English Date Range: 7 May 1976 Extent: 3 Items