The absence of any residual shoe polish (boot polish) or other leather type dressing suggests this brush may have been used for lint and dust removal from uniforms. This brush type was likely used by an officer or aide to a Commissioned Officer to maintain the appearance of tunics, trousers etc.
History: Clothes brushes were issued to soldiers so they could clean their uniform clothing and headdress by vigorously brushing them prior to inspections, guard duties and ceremonial parades. In many cases, boots were also required to be polished to a high shine, but this would have occurred with a different brush.
This brush in the CSS Museum belonged to L. Col Ken Langridge who joined the British Army when he was 15 prior to 2WW. After immigrating to Canada following the war, he became the first Commanding Officer of the Winnipeg Militia Service Battalion in 1965. Subsequently, he also served as Honorary Lieutenant-Colonel and Honorary Colonel of the Battalion for 17 years.