My Dad's official USN pea coat is still at my Mom's house somewhere.
It was issued to him in 1944 just before he shipped out for the south Pacific during WWII!
Evidently those islands in the Pacific get really cold at night or some other time of the year.
Unfortunately, he was a 42 back then and I have pretty much always been at least a 52 long. It's a good thing the KaBar he gave me wasn't issued in different sizes.