Officer’s field blouse for a reserve infantry lieutenant

Officer’s field blouse for a reserve infantry officer, in very nice, only lightly worn condition, as pictured. I can see no real damage, only the stains on the shoulder area, which to me strongly resemble bloodstains. The collar tabs and breast eagle are, in my opinion, definitely original sewn, as are the shoulder straps; they may not have been replaced perfectly when the officer transferred from active to reserve duty. Only on the underside of the shoulder strap and slightly along the edge of the breast eagle have small pieces been removed by moths, as shown.