Vintage women periwinkle suit jacket

“Duchess Royal” vintage periwinkle suit coat. 50s? Gorgeous design, rare beautiful color and cut that encourages an hour glass figure. Well constructed with back buttons to weight down the front buttons. Missing the button to fasten button under the collar and needs a steaming. Otherwise in good condition. There is also writing from having been in a theatrical costume collection. Looks great with neutrals or jeans! Flat measurements: shoulder to hem - 23” ; pit to pit - 17.5” ; waist - 14”