No Image Lot 2097 WW1 US M1917 Steel Helmet. Three holes have been drilled to each side of the rim to allow fitment of 2097WW1 US M1917 Steel Helmet. Three holes have been drilled to each side of the rim to allow fitment of Bamfords Auctioneers & Valuers WW1 US M1917 Steel Helmet. Three holes have been drilled to each side of the rim to allow fitment of a steel face sheild. Heat Treatment Lot numbe... Add to watchlist Live