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[10] 2.5 million masks were manufactured before being superseded. The helmet was a 50.5 cm × 48 cm (19.9 in × 18.9 in) canvas hood treated with chlorine-absorbing chemicals, fitted with a single rectangular mica eyepiece. [11] [a] It was a khaki-coloured flannel bag soaked in a solution of glycerin and sodium thiosulphate. The soldier placed ...
During 1917, an additional mask strap was produced, intended to be worn around the head of the wearer. [4] The first model of the M2 mask was introduced during March 1916 and had a rectangular piece of cellophane glass for viewing, protected by a piece of glass in front of it. In April, the rectangle was replaced by two round pieces of ...
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Uncle Sam pointing his finger at the viewer in order to recruit soldiers for the American Army during World War I, 1917-1918 Sheet music cover for patriotic song, 1917. The Selective Service Act of 1917 or Selective Draft Act (Pub. L. 65–12, 40 Stat. 76, enacted May 18, 1917) authorized the United States federal government to raise a national army for service in World War I through conscription.
Before World War II, the events of 1914–1918 were generally known as the Great War or simply the World War. [1] In August 1914, the magazine The Independent wrote "This is the Great War. It names itself". [2] In October 1914, the Canadian magazine Maclean's similarly wrote, "Some wars name themselves. This is the Great War."
By late July 1915, 30 gas artillery batteries had been deployed to the German front lines, each equipped with several thousand gas shells. The use of gas was intended to dispose of the Russian garrison, which lacked adequate gas protection or masks. [2] The final assault plan called for multiple infantry units to advance after the gas had ...
Earlier versions of the gas mask prior to 1915s development of the small box respirator were crude and ineffective as no troops had yet experienced poison warfare. One of the first gas masks seen in the early part of the war was the British hypo helmet, after recent failure and ineffectiveness of the black veil respirator. The helmet was ...
Gas mask, WWI. The P helmet, PH helmet and PHG helmet were early types of gas mask issued by the British Army in the First World War, to protect troops against chlorine, phosgene and tear gases. Rather than having a separate filter for removing the toxic chemicals, they consisted of a gas-permeable hood worn over the head which was treated with ...