This vintage sweater was made in the 1940s- early 1950s by Princeton Award Sweaters and Jackets. It is made from off-white wool with a wide waistband and drawstring neck. It has a 36″ unstretched chest, but has a good deal of stretch. I would recommend this for a 36-38.
Chest (pit to pit, unstretched): 18″(doubled = 36″)
Shoulder to shoulder: 19″
Sleeve (shoulder to cuff): 23″