This is Butterick sewing pattern B4122 from 2004. It is uncut in factory folds. The envelope shows a little wear and tear.
Girls' Dress: Flared, ankle length dress has semi-fitted lined bodice, raised waist and back zipper closure. A: contrast overskirt. A, B: shoulder drape. A, B, C: sleeveless. C: purchased trim. D; sleeves, ribbon belt and purchased flower trim.
Fabrics: Dress A, B, C, D: Satin, Lightweight Taffeta, Peau de soie and Silk Duploni. Contrast A (Overskirt): Georgette, Tulle and Organdy.
The pattern is for sizes 12 through 16, Breast 30 to 34, Waist 25 1/2 to 17 1/2, Hip 32 to 36.