Style 1388 vintage sewing pattern, dated 1976.  

Misses' Dress in Two Lengths:

Dress with shaped "V" neckline has gathers at bust-line, back zipper and sleeves gathered into armholes. View 1 has below elbow length sleeves with elastic thru lower edge casing. View 2 has long sleeves and purchased belt. 

Size   12:

Bust   34 inches / 87 cm

Waist 26.5 inches / 67 cm

Hip    36 inches / 92 cm

Pattern is partly cut and checked complete. Envelope is in very good vintage condition.

More '70s patterns here:

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