Butterick 6477 vintage sewing pattern, dated ca 1971.

Misses Robe & Gown:

Semi-fitted robe, two inches above or two inches below knee or ankle length, has front and back yoke, round neckline or shaped collar, patch pockets and full length sleeves. With or without lace trim and self tie belt. Semi-fitted gown in two lengths has scoop neckline with front slit and self tie, front and back yoke and short puff sleeves.
very 
Size    14:

Bust    36 inches / 92  cm

Waist  28  inches / 71 cm

Hip     38  inches / 97 cm

Pattern is partly cut and checked complete, cut on longest skirt length. Envelope is in good vintage condition, with some corner wear and a store stamp on the front.

More '70s patterns here:

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