Style 3887 vintage sewing pattern, dated 1983. 

Misses' Pullover Dress or Top, Skirt, Trousers and Lined Bias Bikini.

Pullover dress or top has round neckline, extended shoulders and bottom gathered into bottom bands. Mini skirt & trousers are gathered into front and back yokes and have button and buttonhole fastening. Bikini has bandeau bra with spaghetti straps.

Size   8 10 12:

Bust  31 1/2 - 32 1/2 - 34 inches / 80 - 83 - 87 cm

Waist 24 - 25 - 26 1/2 inches / 64 - 67 - 71 cm

Hip    33 1/2 - 34 1/2 - 36 inches / 85 - 88 - 92 cm

Pattern is cut to size 12 and checked complete.  Envelope has wear and tear around opening, ink and scuff mark on the front.

More '80s patterns here:

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