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of Fitchburg, Mass., USA
John Putnam and Salmon W. Putnam embarked on starting a machine shop in 1836, and made machines for it. However the business climate caused them to delay their plans. In 1837 they started in Ashburnham, Mass., as J & S W Putnam, moving to Fitchburg in 1838.
1858 The business became the Putnam Machine Co.
See 1897 article in 'Machinery'. This includes a photo and description of what was claimed to be their first lathe, built in 1835-6. It was a small machine, with features typical of American lathes of that era, including a wooden bed and legs.
See also 'Machinery', May 1907, for photographs and descriptions of some of the machines and processes.