Vintage West Point Sweatshirt Size Medium Men's but more like a small

This is from 1983, but still in very good condition. There is nothing on the sleeve, that's a shadow. This is closer to a small than a medium, because sizes have grown bigger as people have, but see measurements in photos. Directly from West Point Academy, I was given 2 and am keeping the one I wore the most. This has the old school look and feel, is an obvious authentic.