1. Philatelic 72/22/1/90 Reference (shelfmark): Philatelic 72/22/1/90 Title: The People's Republic of China Mini-Sheet Issue: The Great Wall Scope & Content: Stamps designed by Wan Weisheng. Manufactured by the Beijing Postage Stamp Printing Works using a photogravure printing process. Collection Area: Philatelic Collections Languages: English Date Range: 25 Jun 1979 Extent: 4 Items