The following 2 stamps are from the 1976 “Coat of Arms” series.
In this series (#930-932) Scott lists: 25p salmon, 50p lt green, and 1af ultra.
As you can see in the image, I have a 50p that is definitely not green.
Some internet research on StampCommunity and found that this stamp is listed in Stanley Gibbons as SG 803a rosine.
