1980's Pauline Trigere Black Linen Tuxedo skirt suit. 
This is such a beautiful suit on it's own but what a look paired with jeans! The linen fabric is textured, patterned, soft and just exquisite.
The jacket has three big shiny buttons in front, a fitted waist, a relaxed peplum, padded shoulders and foldable cuffs. 
White linen dickie has six snaps up front an attached bow tie. 
Jacket: shoulder to shoulder 16", bust 38" resting, sleeve 24", waist 32", hips free. 
Skirt: waist 30", hips 38", length 23".
Modern size is M and condition is Mint.

This item is sold from an excellent, highly rated vintage boutique.