Simplicity 6581 vintage sewing pattern, dated 1974.

Misses' Short Jumper or Top and Pants ... Young Contemporary Fashion:

The top V.1 or short jumper V.2 stitched to yokes has lowered round neckline, front slit opening, back zipper, extended shoulders and set-in sleeves forming turn back cuffs. The top-stitched top V.1 with eyelet and lacing trim has curved slits in side seams. The The short jumper V.2 features patch pockets. The pants V.1 have back zipper and waistband. 

Size 10:

Bust   32 1/2  inches / 83 cm

Waist 25 inches / 64 cm

Hip    34 1/2 inches / 87 cm

Pattern is cut and checked complete, cut to short ( top ) length, with original extension pieces for dress included. Envelope has general wear and tear.

More '70s patterns here:

http://allthepreciousthings.com/collections/1970s