1. Philatelic 72/167/7/22 Reference (shelfmark): Philatelic 72/167/7/22 Title: Oman Postage Stamp Issue: National Day Scope & Content: Stamps manufactured by Imprimerie Courvoisier SA, Switzerland using a photogravure printing process. Collection Area: Philatelic Collections Languages: English Date Range: 18 Nov 1980 Extent: 4 Items