True Vintage Karl Lagerfeld Black/Ivory Silk Peplum Blouse 36 XS/S  France.  Tiny waist-please check measurements.  

Measures:  38 inch bust, 26 inch waist, 29 inch sleeves from the center of the collar to the ivory at the wrist, 15.5 inches from the top of the shoulder to the peplum seam at the waist, 21.5 inches in length.