Catalogue Number: 2462
F A Hardy optometer
Designer/inventor: Francis A Hardy
Year Of Publication/Manufacture: c1902
Time Period: 1900 to 1939
Place Of Publication/Manufacture: Chicago Illinois USA
Publisher/Manufacturer: F A Hardy & Co
Description Of Item: Reading optometer of brass, glass & ebonised wood. Brass cylindrical monocular eyepiece with double cell for trial lenses and left/right occluders. Ebonised wood handle. Brass holder of visual target moves along calibrated bar by rack and pinion gear. Imprint 'F.A.HARDY & CO/ OPTICIANS/ CHICAGO. ILL', 'PAT. APR. 29 1902'. U.S. Patent No 698833 was granted for this design to Francis A Hardy on April 29 1902. L:375mm x H:175mm x W:146mm.
Historical Significance: Fancis A Hardy had secured an earlier patent for an optometer, US268016 on November 28, 1882.
How Acquired: Donated by Michael Aitken
Date Acquired: July 2014
Condition: Very good
Location: Archive room. West wall. Unit 5 Overhead display