Vintage Simplicity sewing pattern from 1976.  Girl's ponchos, sizes 12 and 14, or medium and large.   Rounded or pointed ponchos, with or without collars.  Button closing, pockets, and belt, with optional trim. 
Fits chest size 30" - 32".
Waist 25 1/2" to 26 1/2".
Finished back length of ponchos 19 1/2" to 25".