Simplicity 6787 vintage sewing pattern, dated 1966. 

Misses' Jacket, Overblouse and Skirt in Two Lengths ... Designer Fashion:

Blouse has back separating zipper and may be sleeveless or have short sleeves. Sleeveless blouse is lined when made of lace, eyelet or sheers. Skirt without side seams has waistband, back zipper and pockets. Lined jacket has below elbow sleeves, mandarin collar and optional buttons and loops.

Size    12:

Bust   32 inches / 81 cm

Waist 25 inches / 64 cm

Hip     34 inches / 86 cm

Pattern is printed, cut and checked complete. Envelope has some spots, store stamp on the front and some tears around opening.

More '60s patterns here:

http://allthepreciousthings.com/collections/1960s