Fully Fashioned Vintage Cashmere Button-up Sweater

Circa 1950s 100% cashmere button up. Sweater is cream colored & buttons are a pretty opalish-looking shell. Hasn’t been worn in decades if at all. In GREAT condition and soooo soft. Doesn’t list size, but as seen in pics, measurements are approximately 20” armpit to armpit and 21.5” shoulder to bottom hem. [Based on this, guestimation is a Small]