Persia. (Persian Gulf - Iraq). 1923. Registered envelope endorsed 'O.H.M.S.' addressed to 'The Intelligence Officer. Army Headquarters, Bagdad, Iraq' bearing 'Controle' overprint Yvert 444, 10c brown and rose and Yvert 446, 1k lilac and carmine (2) tied by Tauris date stamp with hand-struck boxed 'R/ Tauris' and Bagdad H.Q. arrival.
In 1923 Iraq was under the British Mandate and the military and intelligence in Baghdad were part of the British Army.