The first
post office to open in the region was at
Muscat on 1 May 1864. This was originally under the
Bombay circle but it was transferred to the
Sind (
Karachi) circle in April 1869 and then back to Bombay in 1879. Only one office existed until 1970. Postal control briefly passed to
Pakistan after the
Partition of India and then to
Great Britain. After the British agency closed, the
Sultanate of Muscat and Oman assumed postal control from 30 April 1966. Muscat used Indian stamps from 1 May 1864 until 19 December 1947. Stamps of Pakistan were used from 20 December 1947 until 31 March 1948 and the British agency stamps from 1 April 1948 until 29 April 1966. The first stamps specific to Muscat were an
Indian issue with
overprints on 20 November 1944 to commemorate the bicentenary of the
Al-Busaid Dynasty. The issue in fifteen values from three
paise to two
rupees was the 1940–1943 Indian definitive set, featuring
George VI, overprinted in
Arabic script with "AL BUSAID 1363". The first British stamps were nine current George VI
definitives carrying
surcharges ranging from one half
anna to two rupees.
Gibbons recorded twelve different issues of surcharged British stamps in Muscat, with varying numbers of values. These issues were mostly definitives but included some
commemoratives such as the 1949 Universal Postal Union and
1957 World Scout Jubilee Jamboree sets. ==Bahrain==