1. Philatelic 72/22/1/85 Reference (shelfmark): Philatelic 72/22/1/85 Title: The People's Republic of China Postage Stamp Issue: 90th Anniversary of International Labour Day Scope & Content: Stamps designed by Deng Xiqing. Manufactured by the Beijing Postage Stamp Printing Works using a photogravure printing process. Collection Area: Philatelic Collections Languages: English Date Range: 1 May 1977 Extent: 1 Item