Vintage 1930s-40s Pendleton Wool Shirt Size Mens Medium?

Vintage 1930s-40s Pendleton Wool Shirt Size Mens Medium?

This shirt is in amazing condition considering how old it is. It has some holes, but considering its age, it gives it a lot of character. The size tag has been removed, so I added pictures of measurements for consideration. I can only guess it''s a mens medium. Please see the photos for details. Ships quick.