Hewet Union Wrench

Patent number 41,995 issued to Henry Wheaton Hewet and granted on March 22, 1864. Classified as a spanner wrench with adjustable jaws. Manufactured by WL Miller and Fowle & Company, both of NY New York. An advertisement appears in Wilson’s Business Directory of 1865 as Hewet’s Patent Wrench under the heading “screw wrenches” and listing¬†William Miller, 479 First Ave, New York.