Articles 3 and 4 of the General Treaty of 1819, in which Britain enforced the design of flags flown by the so-called Trucial States.
Recorded in the UK archives in 1958, this is the design for the flag of Abu Dhabi, adopted by the Ruler, Sheikh Shakhbut bin Sultan in 1961
The original flag of Umm Al Quwain, a design created in 1961 by the Ruler, Sheikh Ahmad bin Rashid Al Mualla and submitted to the British Government
A watercolour drawing of the British frigate HMS Vernon in the Arabian Gulf in January 1833, with a local ship flying the traditional red flag of thee region