Lot 80034 – Suez Canal Company – 1868 1c, one glass cliché with image reversed and manuscript production notes at base “cliché 4/13 voile vio” referring to the violet filter used to obtain optimum contrast, also stamp with very shar

Egypt, Suez Canal Company – 1868 1c, one glass cliché with image reversed and manuscript production notes at base “cliché 4/13 voile vio” referring to the violet filter used to obtain optimum contrast, also stamp with very sharp impression in black on pelure paper. We assume that the stamp is original and that Sperati used it to produce his cliché (stamp and cliché are the same position); the literature notes nothing about Sperati’s production of Suez Canal Company stamps and we know of no finished stamp reproduction; unique and an exciting new discovery.