Original US WWI Gasmask With Bag & Instructions- The bag is in good condition. No real flaws except for being dirty, stiff, and feels slightly grimy. There is a number marking on the inside flap (see pics for details) and someone's name has been written on the backside. The bag includes the face mask with attached filter and hose, Record Card/Instructions with date and signature. The filter is quite rusty and corroded. The rubber on the inside of the facemask is slightly dry. There are several number markings on the mask. Would make for a great addition to anyone's collection!