Butterick 6736 vintage sewing pattern, dated 1988. 

Misses' Maternity Dress, Top & Skirt.

Very loose-fitting, A-line dress, below mid-calf, or top has front neck pleats, slightly extended shoulders, shoulder pads, back zipper and long sleeves.  A, B, C: collar. C: purchased trim. Straight skirt, mid knee, has elastic waist, back hemline slit and purchased front stretch panel.  Purchased flower.  

Size 12 14 16: 

Bust 36 38 40 inches /  92 97 102 cm

Waist 28 30 32 inches / 71 76 81 cm

Hip 38 40 42 inches / 97 102 107 cm

Pattern is UNCUT, still factory folded. Envelope is in good vintage condition, with a store stamp on the front.

More 80s patterns here:

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