Great Britain-2 Colour Variations of the 4 Penny 1902-10 Edward the 7th Definitive-Illustrated

Shown below are two of the colours issued for the 4 Penny value of the 1902-10 Edward the 7th definitive set. In 1906 the stamp was printed in greens and chocolate-browns then in 1909 the design was retained and the colour changed completely to orange. At first an orange-brown then pale orange then red-orange.The red-orange shade is shown below.