Figure 3. Left, a standard early 20th century Wolseley helmet, simple cloth covered cork shell, with a simple leather sweatband with cork spacers. Right, a WWII felt Wolseley with aluminium foil drop liner, held in the dome by the leather headband loosely attached to the shell by four shell piercing metal loops and cotter pins (see Bates & Suciu, 2009, for more details).