The patterns for this Butterick B6639 Copyright McCALL’S® Company, NY pattern are:

DRESS (WOMEN'S): Fitted, fully lined and interlining-covered dress with a boned bustier bodice and concealed back zipper. A is above-the-knee length with short sleeves. B is floor-length with three-quarter-length sleeves and a horsehair ribbon trim at the front hem. C is floor-length with a train-like back, three-quarter-length sleeves, and a horsehair ribbon trim at the front hem.

You can use materials such as:

FABRICS: Satin, Bridal Satin, Peau de soie, Crepe. Large diagonals are not suitable. *With a slant. **With a slant.
Size guides can be found in “affiliation”