The Officers and Other Ranks Undress uniform of King Edward's Horse was as per that of the King’s Colonials (1905-10) except with new Regimental badges and buttons were worn with the forage cap and tunic.  

Figure 142: The Undress uniform tunic of a Sergeant of the King Edward’s Horse with Lancer pattern girdle shown draped over the shoulder. Noted on the tunic are a khaki proficiency trade badge of a harness maker above a King Edward’s Horse cap badge worn as a senior NCO's arm badge above gold rank chevrons, a pair of ‘C’ Squadron (Australian) collar badges and brass King Edward’s Horse tunic buttons. The medal ribbons denotes that the wearer had served in the Great War and were awarded the 1914/15 Star trio. Great War service medals were not awarded until the early 1920s (Electronic auction site image). 

Figure 143: The Undress uniform tunic of a Sergeant of the King Edward’s Horse with a khaki proficiency trade badge of a harness makers above a King Edward’s Horse arm badge above gold rank chevrons, a pair of ‘C’ Squadron (Australian) collar badges and gilding metal King Edward’s Horse tunic buttons circa 1910-14 (Peter Nemaric collection). The harness maker's badge was originally to distinguish the trade of a collar maker but was more broadly used over time for saddle maker, saddle tree maker and harness maker. Referenced as 3A in Denis Edwards's and David Langley's: British Army Proficiency Badges. The Sherwood Press Nottingham, 1984.   

Figure 143a: The Service Dress forage cap of the King Edward's Horse. Khaki with scarlet band and piping with brown leather peak and chinstrap, lining marked "V.V. Pedlar King Edwards Horse". This example is fitted with a King Edward's Horse Officer's Service Dress cap badge in bronze  attached with east-west loops (authors collection).  V. V. Pedlar was Vyvian Vercoe Pedlar see Nominal Roll entry.