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Illustration of patent number 539,581. In a pen holder, a cam for clamping the pen in place, pivoted to a support located wholly within the holder tube, substantially as shown and described. Patent filed August 28, 1894 by William A. Gay of Newark, NJ.

William A Gay Penholder Patent

Illustration of patent number 539,581. In a pen holder, a cam for clamping the pen in place, pivoted…