Who wore World War 2 leather flying helmets made by Charles Markson?

World War II leather flying helmets made by Charles Markson were primarily worn by pilots and aircrew members of the Allied forces, particularly in the Royal Air Force (RAF) and the United States Army Air Forces (USAAF). These helmets were designed to provide protection and comfort while flying in open cockpits or high altitudes. They featured insulation and ear flaps to help mitigate cold temperatures and wind. The helmets became iconic symbols of the era, representing the bravery and skill of those who flew during the war.