Vandercook
 Vandercook & Sons was a manufacturer of proof presses founded in 1909 by Robert Vandercook. They dominated the 20th century proof press industry by developing the first and the most widely used proof presses that did not rely on gravity for the force of their impression. As a result Vandercook's geared presses were easier and more precise for an operator to use.Vandercook was sold in 1968 to the Illinois Tool Works when it became Vandersons.