WWI US M1917 Small Box Respirator Carry Bag

World War One US M1917 Small Box Respirator Carry Bag. This carry bag is in overall good condition and only suffers from some very slight tears in the sling strap and discoloration/staining. It is marked “WIDE 4” on the outside of the flap and “P.18-28-1290” on the inside of the flap.