USArmy M1951 Fishtail Parka Shell Medium?

Description

Here is an original US Army M1951 Fishtail Parka Shell. I can’t find any marks, but I think it is a size medium. It measures approximately:
Pit to pit 27”
Sleeve 32/33”
Shoulder to shoulder 23”
Bottom collar seam 40”
It has several field repairs, but is in good overall condition. There are some moth holes in the pocket liners and stains to the rear. Three liner buttons are missing. The zipper works fine.
Please let me know if you have any questions.