1. Philatelic 72/141/1/44 Reference (shelfmark): Philatelic 72/141/1/44 Title: Socialist Republic of Vietnam Postage Stamp Issue: Five Billion Inhabitants on Earth Day Scope & Content: Lithography printed stamps manufactured by the Post Office Printing Works, Ho Chi Minh City. Collection Area: Philatelic Collections Languages: English Date Range: 11 Jul 1987 Extent: 1 Item