Hi, I’m a rank newbie to this forum and to vintage USN jackets. I found what’s listed as a WWII era G1 locally, but at best, it seems like a late, post-war version based on the Guide here. The zipper pull and upper back tag are missing - which makes me suspicious, and I don’t have anything else to go by other than these photos. Can anyone help determine what this is, or do I need more information? If the latter, what info/photos should I request? Thanks!!