1. Philatelic 72/23/1/131 Reference (shelfmark): Philatelic 72/23/1/131 Title: The People's Republic of China Postage Stamp Issue: Dunhuang Cave Murals (3rd Series) Scope & Content: Stamps designed by Wu Jiankun and Ren Yu. Manufactured by the Beijing Postage Stamp Printing Works using a photogravure printing process. Collection Area: Philatelic Collections Languages: English Date Range: 10 Jul 1990 Extent: 4 Items