Yellow Bird Vintage 1980's Baby Boy Cardigan Sweater Seasons Themed Acrylic

Yellow Bird Vintage 1980's Baby Boy Cardigan Sweater Seasons Themed Acrylic. Missing top button which could be an easy fix. Tiny mark on back of one sleeve as shown in picture. Otherwise good Pre-owned Vintage condition. Definitely runs small due to being vintage. Please see measurements in photos provided. Cross posted. I ship out same or next day. Thanks for looking!