1. Philatelic 72/167/7/70 Reference (shelfmark): Philatelic 72/167/7/70 Title: Oman Postage Stamp Issue: International Environment Day Scope & Content: Stamps designed by Mohammed bin Nizam Shah. Manufactured by Heraclio Fournier using a lithography printing process. Collection Area: Philatelic Collections Languages: English Date Range: 5 Jun 1987 Extent: 2 Items