Ten historic fire helmets shown with verified Wikimedia Commons photographs. Photograph credits: 1. File:Leather fire helmet.JPG; Dbyes at English Wikipedia; Public domain; ; https://commons.wikimedia.org/wiki/File:Leather_fire_helmet.JPG; 2. File:Firefighter helmet, c. 1885 - Museum of Science and Industry (Chicago) - DSC06810.JPG; Daderot; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Firefighter_helmet%2C_c._1885_-_Museum_of_Science_and_Industry_%28Chicago%29_-_DSC06810.JPG; 3. File:WMP museum - Birmingham Fire Brigade helmet 01.jpg; Chris McKenna; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:WMP_museum_-_Birmingham_Fire_Brigade_helmet_01.jpg; 4. File:French Fireman's Helmet from the Louis Philippe Era.jpg; Unknown author Unknown author; Attribution; ; https://commons.wikimedia.org/wiki/File:French_Fireman%27s_Helmet_from_the_Louis_Philippe_Era.jpg; 5. File:Fire helmet, c. 1893, leather, steel - Old Colony History Museum - Taunton, Massachusetts - DSC03887.jpg; Daderot; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Fire_helmet%2C_c._1893%2C_leather%2C_steel_-_Old_Colony_History_Museum_-_Taunton%2C_Massachusetts_-_DSC03887.jpg; 6. File:Leather Fire helmet worn by Henry Clay Sexton.jpg; Unknown author Unknown author; Attribution; ; https://commons.wikimedia.org/wiki/File:Leather_Fire_helmet_worn_by_Henry_Clay_Sexton.jpg; 7. File:Volunteer Fireman's Helmet from Poigen, Austria.jpg; Unknown author Unknown author; Public domain; ; https://commons.wikimedia.org/wiki/File:Volunteer_Fireman%27s_Helmet_from_Poigen%2C_Austria.jpg; 8. File:Fireman's helment, Japan, 1700s-1800s AD, iron, shell, lacquer, brass, wood - Peabody Essex Museum - DSC07565.jpg; Daderot; Public domain; ; https://commons.wikimedia.org/wiki/File:Fireman%27s_helment%2C_Japan%2C_1700s-1800s_AD%2C_iron%2C_shell%2C_lacquer%2C_brass%2C_wood_-_Peabody_Essex_Museum_-_DSC07565.jpg; 9. File:Casco de bombero Cairns & Brothers 900.jpg; Canizipi; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Casco_de_bombero_Cairns_%26_Brothers_900.jpg; 10. File:Vajen Fire and Breathing Helmet, c. 1880 - Museum of Science and Industry (Chicago) - DSC06477.JPG; Daderot; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Vajen_Fire_and_Breathing_Helmet%2C_c._1880_-_Museum_of_Science_and_Industry_%28Chicago%29_-_DSC06477.JPG;