1. Philatelic 72/22/1/76 Reference (shelfmark): Philatelic 72/22/1/76 Title: The People's Republic of China Postage Stamp Issue: 20th Anniversary of the Founding of the Ningxia Hui Autonomous Region Scope & Content: Stamps designed by Zhang Kerang. Manufactured by the Beijing Postage Stamp Printing Works using a photogravure printing technique. Collection Area: Philatelic Collections Languages: English Date Range: 25 Oct 1978 Extent: 3 Items