Butterick 6198 vintage sewing pattern, dated early 1970s. 

Misses' Dress & Pants.

Fitted, jewel neckline, sleeveless bodice, with or without bias turnover collar is attached to gathered wrapped A-line skirt, two inches above or two inches below knee, with or without button and loop closing. Button trim. Self tie or purchased belt. Straight legged pants have elasticized waistline. 

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, with paper spotting.

More '70s patterns here:

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