Vintage Birch Hill Blue Turtleneck Rib Knit Cashmere Sweater Size Large

Vintage ocean blue cashmere sweater from Birch Hill. Long sleeves, turtle neck and rib knitting details. 100% Cashmere. Tag reads size XL but based on measurements would be better for a large or oversized medium. 19.5" underarm to underarm 23" sleeve, 23" length. Discoloration around rollover neck as can be seen in pictures.