As a result, almost any variation of the official uniform could be found as officers and men abandoned some items, adopted others and modified still others.
Officers, NCOs and cavalry troopers were equipped with a sword belt with a rectangular buckle with eagle motif.
[11] The color of the shoulder strap fields[12] – with trims in gold braid – were as follows: Contemporary photographs and a Winslow Homer painting, Playing Old Soldier,[16] show staff officers occasionally added their departmental initials within the shoulder straps between the rank insignia.
[17] With the exception of slight changes to the representing insignia for the more junior commissioned grades as well as additional color combinations for new career fields, the shoulder strap insignia and color scheme survives largely unchanged in the modern era on the Army Service Uniform.
They were colored according to service branch: Brass shoulder scales were worn on dress uniforms, with different features to signify enlisted ranks.
The idea is attributed to General Philip Kearny who ordered his men to sew a two-inch square of red cloth on their hats to avoid confusion on the battlefield.
This idea was adopted by General Joseph Hooker after he assumed command of the Army of the Potomac, so any soldier could be identified at a distance, and to increase troop morale and unit pride – the badges became immensely popular with the troops, who put them anywhere they could, and the badges accomplished the objectives they had been created for, and the idea soon spread to other corps and departments.
Division badges were colored as follows: The uniform itself was influenced by many things, both officers' and soldiers' coats being originally civilian designs.
These were uncomfortable, especially in hot weather, and were thrown away by the men at the first opportunity to be replaced with cotton neckerchiefs, bandanas or (in the case of officers) neckties or cravats.
The late-war sack coat was copied from the fatigue jacket worn by the 19th century Prussian Army.