Public domain
Tank manufacture (Chrysler). Twelve of these bell type carburizing furnaces are in twenty-four hour operation at the huge Chrysler tank arsenal in Detroit. They are employed to barburize final drive gears, transmission parts and other parts of the twenty-eight ton M-3 tanks in production there
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineTank manufacture (Chrysler). Twelve of these bell type carburizing furnaces are in twenty-four hour operation at the huge Chrysler tank arsenal in Detroit. They are employed to barburize final drive g. 1940-01-01. Palmer, Alfred T., United States. Office For Emergency Management. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.