3" by 2-1/4" Cap badge of solid copper with round emblem and Celtic knotting at the bottom. Kings crown at the top and a Boars head facing left and a cat on the right. Outer border reads ARGYLL and SUTHERLAND. Set against background of thistles. The Argyll and Sutherland Highlanders (Princess Louise's) was a line infantry regiment of the British Army that existed from 1881 until amalgamation into the Royal Regiment of Scotland in March 2006.