Butterick 2670 vintage sewing pattern, dated circa 1962. 

Misses' Sheath Dress

Shallow neckline, semi-fit sheath, extended shoulders. With or without self tie belt. 

Size   12:

Bust   32 inches / 81 cm

Waist 25 inches / 64 cm

Hip    34 inches / 87 cm

Pattern is UNPRINTED, perforated tissue and is unused in tight factory folds with instructions. Envelope has been cut and pasted to a plain, generic envelope which has some spotting.

More '60s patterns here:

http://allthepreciousthings.com/collections/1960s