Style 2963 vintage sewing pattern, dated 1981.

Misses' Unlined Jacket, Top and Trousers:

The outfit consists of baggy trousers, with pockets in side seams and center back zipper, which narrow to the ankle and are worn with self fabric cummerbund. The simple top has narrow shoulder straps and fastens at side with button and loop. Over this is a boxy jacket with gathering from forward yoke. 

Size 12:

Bust   87 cm (34 inches)

Waist 67 cm (26 1/2 inches)

Hip    92 cm (36 inches).

Pattern is cut and checked complete. Envelope has wear and an ink mark on the front.

More '80s patterns here:

https://allthepreciousthings.com/collections/1980s