King George VI ruled Britain, and as a consequence, the Aden Protectorate in southern Yemen, from 1937 until 1951. In the first year of his reign, Aden began using its own stamps rather than the stamps of British India it had been using previously.
Soon after getting its own stamps, Aden further asserted its desire for independence by demanding and receiving stamps bearing the name of two areas in its eastern part: the Kathiri State of Seiyun, and the Quaiti Sultanate of Shihr and Mukalla. Aden stamps of this era often featured the dhow.
After George VI’s reign, Queen Elizabeth II would take over Aden in 1952.
