From McCall's:
Semi-fitted dress has front and back princess seams ending at waistline; Dress A has button and loop closure in front; Dress B or C has buttons and buttonholes; slip included.
Recommended Fabrics: Dress A, B, C: Soft Cotton, Cotton Blends, Challis, Rayon Blends, Georgette, Crepe de Chine, Silk Jacquard, Tissue Faille. Slip: Crepe de Chine, Challis, Charmeuse, Silk Jacquard, Tissue Faille.
Sizes: (6-8-10), (8-10-12), (10-12-14), (16-18-20)