Butterick 3763 vintage sewing pattern, dated 1970s. 

Misses' Dress, Top & Pants.

Loose-fitting A-line dress or top with side slits has applied front detailing with neckline split, pointed collar, dropped shoulders, wide sleeves with turned-back cuffs, and topstitch trim. Self tie or purchased belt. Straight-legged pants darted into waistband have back zipper closing. 

TWO copies available, choose size from drop down.

Size 12:

Bust 34 inches / 87 cm

Waist 26 1/2 inches / 67 cm

Hip    36 inches / 92 cm

Pattern is UNCUT and factory folded. Envelope is intact, has paper foxing down one side.

OR:

Size    18:

Bust:   40 inches / 102 cm

Waist: 31 inches / 79 cm

Hip:    42 inches / 107 cm

Pattern is partly cut and checked complete, pants are uncut. Envelope has wear and tear around opening and corners.

More '70s patterns here:

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