Sudan 1906-11 5m scarlet and black Army Official error, SGA9eSudan 1906 11 5m scarlet and black Army Official Type A3 overprint, error OVERPRINT DOUBLE, ONE INVERTED, SGA9e. A fine mint example with large part original gum. A spectacular error in exceptional quality and very rare. Only one pane existed, and most were used for postage. Accompanied with British Philatelic Association (BPA) certificate of authenticity (2011) and Brandon certificate of authenticity (1990). The Camel Postman stamps of Sudan are