The cap badge of the Irish Guards and the bearskin plume are both based on the star and sky-blue sash colour of the Most Illustrious Order of St Patrick.
The Princess Royal is pictured presenting the Regiment with shamrock.
The badge consists of a star, within which is a shamrock with three crowns on its leaves (the historic kingdoms of England, Ireland and Scotland), the shamrock being placed on a cross of St Patrick.
The centre is surrounded by a circle which bears the legend
QUIS SEPARABIT ~ who shall separate ~ and the Roman numerals
MDCCLXXXIII ~1783 ~ the year that the Order of St Patrick was established.
First published in November, 2009.