From Reader Ken Angst
United States Rifles and Machine Guns: A detailed account of the methods used in manufacturing the Springfield, 1903 model service rifle; also descriptions of the modified Enfield rifle and three types of machine guns
by Fred Colvin and Ethan Viall
https://archive.org/details/unitedstatesrifl00colvrich
Dated 1917, anyone who is interested or involved in the maintenance or restoration of the US Rifle Caliber 3o model of 1903 will find this detailed engineering book invaluable. Included are all of the machining specifications and information on the tools used to manufacture the 03. You can zoom in and read the small print if you need to.
