M44 tunic listed on MV40-45 authentic?

[soer8995]

Hi, I came across this Wehrmacht M44 tunic on a website. To me it doesn't look quite right. Firstly it has a sewing line going down the middle on the inside, which, to my understanding, doesn't belong on standard M44 tunics. It also seem to be missing the button straps on the inside of the collar, although it isn't really shown on the photos. To me it doesnt look quite right.

Am I missing something or is this an aged reproduction made to look authentic?
Photos are attached Attachment 1665057Attachment 1665058Attachment 1665059Attachment 1665060Attachment 1665061Attachment 1665062