Amazon.com : Epic Militaria WW1 US M17 Helmet - American Military Army Steel Cotton Lined Reproduction (Medium (56/57 cm)), Green : Sports & Outdoors
World War I 55th U.S. Engineers Painted Helmet | Antiques Roadshow | PBS
Amazon.com : German WWI M16 M18 Stahlhelm Combat Steel Helmet Dark Green,Head Size 58cm-59cm : Sports & Outdoors
Adrian helmet - Wikipedia
Brodie Helmet / Helmet, steel, Mark I (World War I) - YouTube
The Brodie Helmet | National Army Museum, London
Steel Helmet, Brodie "War Office" pattern: British Army | Imperial War Museums
helmet | British Museum
Stahlhelm, German helmet - Musée de la Grande Guerre
The M1 Helmet: The Soldier's helmet | Article | The United States Army
WW1 helmet with bullet hole stolen in break-in - BBC News
How the Military Helmet Evolved From a Hazard to a Bullet Shield | At the Smithsonian| Smithsonian Magazine
This WWI helmet may outperform modern ones against shock waves
A World War I Vintage Helmet Bests A Modern Brain Bucket : NPR
W. H. Mullins Co. | American Helmet Model No. 7, Sentinel's Helmet | American, Salem, Ohio | The Metropolitan Museum of Art
