This sweater is 100% wool. I think cotton and wool were the only yarn choices in 1957, at least in the Foot Hills of the Blue Ridge Mountains in Virginia. Mom purchased the wool from a small five & dime type store and ordered the Angora from Montgomery and Ward! I remember her receiving the little ball of Angora and how "Special" I felt that she actually ordered yarn for "My Sweater"!
It continues to warm my heart each time I pull this sweater from the cotton bag that is always stored on a top shelf in my closet. Over the years, this piece has made every move with me and I consider this truly one of my Treasures.