Vintage flannel like button down long sleeve shirt retro plaid

I have another shirt different colour scheme but identical in my closet . This one has no tags anymore , but the other one is Eaton Birkdale so this one may be as well No material tag Great condition has some writing in the collar Feels like a wool or poly flannel not 100 % sure Perfect for fall winter Approx measurements in photos Please not all tape measures are different so measurements may be slightly off so no returns sold as is Clean / smoke free