1. Philatelic 72/22/1/22 Reference (shelfmark): Philatelic 72/22/1/22 Title: The People's Republic of China Postage Stamp Issue: Chairman Mao's Directives on Industrial Teaching, Daqing Red Banner Scope & Content: Stamps designed by Ren Yu and Pan Keming. Manufactured by the Beijing Postage Stamp Printing Works using a photogravure printing process. Collection Area: Philatelic Collections Languages: English Date Range: 30 Sep 1974 Extent: 5 Items