1. Philatelic 72/140/3/20 Reference (shelfmark): Philatelic 72/140/3/20 Title: Socialist Republic of Vietnam Postage Stamp Issue: Fourth Vietnamese Trade Union Congress Scope & Content: Lithography printed stamps manufactured by the State Printing Works, Hanoi. Collection Area: Philatelic Collections Languages: English Date Range: 1 May 1978 Extent: 2 Items