1. Philatelic 72/23/1/56 Reference (shelfmark): Philatelic 72/23/1/56 Title: The People's Republic of China Mini-Sheet Issue: Dunhuang Cave Murals (1st 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: 20 May 1987 Extent: 1 Item