Simplicity 8463 vintage sewing pattern ©1978. 

Misses' Jiffy Caftan:

The caftan has raglan sleeves, neckline casing and self bow. V. 1 has short sleeves with elastic casing. V. 2 has long sleeves. 

Size    LARGE 18 - 20:

Bust    40 - 42 inches / 102 - 107 cm

Waist  32 - 34 inches / 81 - 87 cm

Hip     42 - 44 inches / 107 - 112 cm

Pattern is UNCUT and factory folded. Envelope is in very good vintage condition, with a store stamp on the front.

More '70s patterns here:

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