1950's wool varsity jacket by Wilson, made in USA.
The label and style of the jacket are more consistent with 1940's era. Most likely the jacket was manafuctered during the 1940's and was sold in the early 50's to it's owner who embellished it with a big chenille patch. 
In amazing condition for it's age.
 
Tagged size 36
Fits like a Men's XS/S or Women's S/M