Butterick 6389 vintage sewing pattern, dated circa 1970s. 

Junior Petite Dress, Pants & Shorts:

Loose-fitting smock dress, gathered into front and back yoke, has self or contrast shaped collar and full length sleeves elasticized at wrist. With or without self sleeve ruffles. Straight-legged pants and shorts have elastic waistline. 

Size    11 JP Junior Petite:

Bust    34 inches / 87 cm

Waist  25 1/2 inches / 65 cm

Hip     35 inches / 89 cm

Pattern is cut and checked complete. Envelope has age tanning and shelf wear.

More '70s patterns here:

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