Simplicity 5863; ©1965; SUB-TEENS' ONE-PIECE DRESS WITH DETACHABLE COLLAR, COAT OR JACKET: Sleeveless A line dress with back zipper closing has contrasting detachable collar. Lined, collarless coat or jacket with below elbow length set-in sleeves (or sleeveless) has optional top-stitching trim. Coat has pockets with button trim. Jacket has optional braid trim.