In Robert Fisch’s book Field Equipment of the Infantry 1914-1945 he show photos and descriptions of three types of US army boots. 1) World War I field shoes adopted c. 1910 known as “Russet Marching Shoes” that are brown leather with rubber heels and leather soles. 2) World War I field shoes M # 1324 similar but with rough side out and hobnailed double soles. 3) World War I trench boots aka “Pershing Boots” M 1918 which are field shoes with rear quarter panel reinforced with brass rivets. These also had a metal horseshoes on the heel and toes. Fisch’s descriptions are longer than what I have wrote.
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