Belgian steel helmet | NZHistory, New Zealand history online
The Evolution of the Hard Hat - The New York Times
Amazon.com : Epic Militaria WW1 US M17 Helmet - American Military Army Steel Cotton Lined Reproduction (Medium (56/57 cm)), Green : Sports & Outdoors
Artifact of the Week: Battle-damaged Helmet | NC DNCR
This WWI helmet may outperform modern ones against shock waves
Bashford Dean and the Development of Helmets and Body Armor during World War I | Essay | The Metropolitan Museum of Art | Heilbrunn Timeline of Art History
World War I 55th U.S. Engineers Painted Helmet | Antiques Roadshow | PBS
French Adrian Helmet | National Museum of African American History and Culture
50th Aero Squadron M1917 Infantry Helmet > National Museum of the United States Air Force™ > Display
Hard Hat Turns 101; Impact on Industrial Safety Never Gets Old - World War I Centennial
Bashford Dean and Helmet Design During World War I | The Metropolitan Museum of Art
Amazon.com: German WWI M1910 Officer Visor Cap- Size 7.25 (58cm): Collectibles: Clothing, Shoes & Jewelry
John Leopold Brodie (1873-1945) - Mark 1 steel helmet
WWI U.S. Army Protective Helmet Used by American Rocket Society | National Air and Space Museum
U.S. officer's campaign hat, World War I] - The Portal to Texas History
WWI Helmets Protect Against Shock Waves Just as Well as Modern Designs | Duke Pratt School of Engineering
Amazon.com: British WWI Officer Service Dress Peaked Cap- Size US 7 1/2 (60cm): Clothing, Shoes & Jewelry
Uniforms and Personal Gear - Cap | Canada and the First World War
5 Real-Life WWI Artifacts As Depicted In Netflix's "All Quiet on the Western Front" | National WWI Museum and Memorial
World War I | American Institute of Physics
Prussian Cavalry Officer Helmet > National Museum of the United States Air Force™ > Display
Military helmets - an introduction | Australian War Memorial
How the Military Helmet Evolved From a Hazard to a Bullet Shield | At the Smithsonian| Smithsonian Magazine
Amazon.com: German WWI M1910 Officer Visor Cap- Size 7.25 (58cm): Collectibles: Clothing, Shoes & Jewelry
