Style 2154 vintage sewing pattern, dated 1977.  

Misses' Negligee and Nightdress in Two Lengths:

Flared "wrap-over" negligee, with seam at center back, has below elbow length set-in sleeves, and a self fabric tie belt. View 1 features self fabric frill on front, neck and sleeve edges. View 2 is trimmed with purchased lace. The flared nightdress, shaped at upper edge, has narrow self fabric shoulder straps and an elasticized waistline. View 3 has self fabric frill around upper edge. View 4 is trimmed with purchased lace. 

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; tissue and instruction sheets in good condition. Envelope is in very poor condition, with lots of holes.

More '70s patterns here:

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