The patterns in this Butterick B6551 Copyright McCALL’S® Company, NY“ pattern are:

DRESS (WOMEN'S): Very loose dress with variations in neckline and length. B, C: Shaped hemline.

You can use materials such as:

FABRICS: Etamine, Linen, Cotton, Silk, Crepe. Large diagonals are not suitable. *With Direction. **Without Direction.

Size guides can be found in "affiliation"