Stamps of Suez Canal
Stamps of Suez Canal Company
Those stamps served only in July and August 1868 when it was decided that payment to the Company shoud be made for transport between Port Said and Suez. At least 12 forgeries exist (only one really dangerous).
Sources: SG 2009 p.207; Yvert&Tellier 2005 Egypte (Canal de Suez) Les timbres du canal de Suez, Le Soir, Phil Igrane (23.4.1983) provides a list of 7 details to be watched to recognize the forgeries.