of steel, shaped to the upper part of the face and covered in brown leather, the inner side lined in chamois leather and both sides stitched together around the border, the apertures for the eyes pierced with horizontal vision-slits, the lower part of the face protected by butted mail, retaining its cotton securing straps, and in fine condition, 16.0 cm wide

Tank masks were introduced in 1917 to protect tank crews from metal and lead paint scattered around the inside of tanks when they came under fire.