end of 50d. McCall's 4998: "Scoop neck dress with fitted bodice and flared six-gore skirt. Dress may be sleeveless, have 3/4 length set in sleeves or short puff sleeves, stiffened at top with crinoline or taffeta. Left side zipper placket. Interfaced contour belt is buttoned at center back. c. 1959"
Simplicity 2089 1957: WOW! A Simple to Make ‘Triple Treat’ pattern. All views have full gathered skirt and sleeveless bodice with round back neckline. View 1 has square front neckline and contrast ribbon belt. View 2 has V front neckline, pleated cummerbund. Bodice & cummerbund are 1 fabric, skirt is contrast. View 3 has scoop front neckline and is shown with purchased belt. Great rockabilly cocktail party or vintage prom formal designs!