Facing colour engineers and support corps normally had a single branch colour, although exceptionally each regiment of Swedish artillery had its own facing colour until 1910. The United States regular army after the American Civil War adopted a universal dark and light blue uniform under which each regiment was distinguished only by numbers and other insignia, plus branch colors. The latter were yellow for Cavalry, red for Artillery and white (later light blue) for infantry. Combinations of colors such as scarlet piped with white for Engineers, orange piped with white for the Signal Corps and black piped with scarlet for Ordnance personnel
Trooping the Colour flanks) of the Escort port arms, as symbolic maximum protection for the colour. The Escort to the Colour and Colour Party slope arms. The Colour Sergeant marches to the right and to the rear of the Escort. Once the Colour Party, Ensign and Regimental Sergeant-Major have joined the Escort, the RSM repositions himself to the left of and behind the Escort. The Subaltern then orders the Escort to change arms and orders the slow march. As the Escort to the Colour slow-marches down the field towards No. 6 Guard to begin their colour trooping, the massed bands perform their unique