Simplicity 6501 vintage sewing pattern, dated 1976.
Misses' short tent dress or jumper (approximate length of dress or jumper is 90cm (36"):
The top-stitched tent dress or jumper with flared skirt stitched to bodice above normal waistline has "sweetheart" neckline, back zipper and set-in sleeves. Lined V. 1 has long sleeves gathered to armholes and to snap fastened cuffs. V. 2 with lined bodice has short pointed sleeves.
Size 16:
Bust 38 inches / 97 cm
Waist 30 inches / 76 cm
Hip 40 inches / 102 cm
Pattern is cut and checked complete. Pattern envelope is in good vintage condition, with some light spotting on the front cover.
More '70s patterns here:
http://allthepreciousthings.com/collections/1970s