The Protectorate initially using the postage stamps of the Coast Protectorate, in March 1901 a set of nine values, depicting Queen Victoria in a 3/4 portrait, went on sale.[1]
Edward VII
The stamps of Queen Victoria were replaced by stamps of Edward VII in 1903. The design, a profile of the King, continued in use throughout his reign, with changes of color, watermark and paper. The 1d. value was redrawn in 1910 and is distinguishable by the "1" in "1d" being thinner, while the "d" is taller and broader.
George V
In 1912, the vignette was replaced with a portrait of George V, for a set of 12, with values ranging from 1/2d. to £1.