Black Button down tunic shirt

Calvin Klein Large long shacket ?? Can be worn open or closed with belt. Button front tunic. Black in color silky feel with 7 gold buttons down the front and trimmed with gold buttons on two front pockets, the long sleeve cuffs and the epilepsy. The condition is very gently worn no distress the measurements are approx being 21” armpit to armpit and29” from shoulder to hem. Removable tie fabric belt.