1. Philatelic 72/167/7/7 Reference (shelfmark): Philatelic 72/167/7/7 Title: Oman Postage Stamp Issue: Centenary of the Universal Postal Union (UPU) Scope & Content: Stamps manufactured by Questa Colour Security Printers Limited, Leeds using a lithography printing process. Collection Area: Philatelic Collections Languages: English Date Range: 9 Oct 1974 Extent: 1 Item