Persian Gulf. (Qatar). 1957. Registered Air Mail envelope written from the 'British Bank of the Middle East, Doha' addressed to India bearing Qatar SG 7, 20n.p. on 3d violet and SG 12, 1r on 1s6d grey-blue tied by oval Registered/ Doha Persian Gulf date stamp '9th Ju 57' with registered label and Bombay arrival. Very nice item of registered mail from Qatar.