1. Philatelic 72/23/1/57 Reference (shelfmark): Philatelic 72/23/1/57 Title: The People's Republic of China Postage Stamp Issue: Children's Day Scope & Content: Stamps designed from the original artwork of Yan Qinghu and Liu Yuan. Manufactured by the Beijing Postage Stamp Printing Works. Collection Area: Philatelic Collections Languages: English Date Range: 1 Jun 1987 Extent: 2 Items