This ensemble is from Yves Saint Laurent's first collection for Christian Dior. 

Jacket, bodice and skirt of black and white herringbone fabric. The main seams of the ensemble are sewn by machine while the inside, finishing stitches are done by hand. Jacket has a notched collar with 3/4-length sleeves and a center front three-button closure. The sleeveless bodice has a wide scoop neckline and closes down the center front with five buttons. The flared skirt is high-waisted and is attached to a sleeveless black silk bodice.

Jacket and Bodice Label: Christian Dior / Paris / Printemps - Ete 1958
Unique Haute Couture ID Numbers: Illegible/Worn off
Dress is unlabelled. 

Approximate Flat Measurements Across the Front:
JACKET 

Bust: 19"

Waist: 17.5" 

Hips: 18"
Shoulder: 14"
Sleeve (shoulder to hem): 17" 

Length (from underarm): 8.5"

BODICE
Bust: 17.5"

Waist: 16"  

Length (from underarm): 8"

DRESS

Bust: 16"

Waist: 14" 

Hips: 18" 

Length (from underarm): 32"