1. Philatelic 72/23/1/80 Reference (shelfmark): Philatelic 72/23/1/80 Title: The People's Republic of China Postage Stamp Issue: Environmental Protection Scope & Content: Stamps designed by Zhang Anpu and Xu Yitao. Manufactured by the Beijing Postage Stamp Printing Works using a photogravure printing process. Collection Area: Philatelic Collections Languages: English Date Range: 5 Jun 1988 Extent: 4 Items