Vintage Woolrich crew neck Dark Blue Grey wool Sweater Sz M woman's / Unisex

Vintage crew neck Sweater by Woolrich - Unisex style - I believe this is a woman's based on measurements but could be worn by a man as well color is a dark blue grey light - medium weight Size M can just be made out on tag, Rest of the tag is illegible so I don't know if this is 100% wool or a blend, Feels like 100% to me, no guarantee I would hand wash or dry clean Approximate measurements: 24 inches from center back top to bottom of waist; 22 inches from armpit to armpit There is a white-ish mark on the front, it could be the knit or something on it, this has been in storage so I would dryclean prior to wear and that might come off, its not obvious so I don't know