1. Philatelic 72/167/7/79 Reference (shelfmark): Philatelic 72/167/7/79 Title: Oman Postage Stamp Issue: Fifth Anniversary of the Gulf Investment Corporation Scope & Content: Stamps designed by M. Rushdi. Manufactured by Joh. Enschede en Zonen, Netherlands using a lithography printing process. Collection Area: Philatelic Collections Languages: English Date Range: 1 Jan 1990 Extent: 2 Items