Great Britain 1904 2d yellowish green and carmine-red (Admiralty Official, Type O11), SGO110.
A very fine and fresh unused, with original gum, example of this government departmental issue which is very difficult to find without serious condition issues.
This is an exceptional example with only the slightest hint of a previous hinge on reverse.
Accompanied with a 2012 Royal Philatelic Society (RPS) Certificate of Authenticity.
SG Catalogue Value: £2,600.