Uniform Frock coat: double breasted, 9 buttons in each row in groups of three, dark cadet gray wool broadcloth with black velvet facings, no piping, light brown silk lining in body, buff silk lining in sleeves; collar insignia consists of embroidered shield with star on each side, sewn shoulder straps have embroidered eagle, no sleeve braid, Kentucky state buttons with backmarks: "HORSTMANN & ALLIEN/N.Y." and "HORSTMANN/NEW YORK," and Federal staff buttons on skirt with backmarks: "EXTRA/QUALITY" and "STEELE &/JOHNSON."
The Kentucky State Guard, of which Buckner was adjutant general, adopted both of these uniform styles (see also: 0985.4.1) on the eve of the war. Neither was an official Confederate uniform, but some Confederate officers liked and adopted the fatigue jacket. Indeed when Gen. Leonidas Polk borrowed one of Buckner's coat to copy, he exclaimed "I like it sir, it looks comfortable, it looks soldierly, in fact sir, it looks rebellious!" The gray coat (this one) was worn by Buckner on dress occasions during the war.