1950s black and ivory sweater in a very soft and stretchy acrylic/wool blend.  Neckline has a placket with a single button and loop beneath the tie. Excellent condition, some nips to the end of one of the ties, see second to last photo.  Marked a size medium but probably more appropriate for an xs to small.
Bust: 26", stretching to 36"
Waist: 24", stretching to 30"
Shoulder: 13" (unstretched)
Sleeve: 23"
Length: 21"

This item is sold from a vintage boutique in Los Angeles, Ca.