The Jennings Self-Recording Test for the detection of Color Blindness

Catalogue Number: 2366
The Jennings Self-Recording Test for the detection of Color Blindness
Category: Equipment
Sub-Category: Colour Vision Test
Designer/inventor: J E Jennings
Year Of Publication/Manufacture: 1914
Edition: 1st
Time Period: 1900 to 1939
Place Of Publication/Manufacture: St Louis, MO, USA
Publisher/Manufacturer: A S Aloe Company
Description Of Item: A boxed colour vision test based on matching coloured woollen samples. The test is in two parts; matching a green woollen skein and a rose coloured sample. A paper record sheet is set below the test board and candidates make a pencil mark through holes on the test board to indicate colour matches on the sheet below. Box label indicates Patent Date of November 24, 1914 (Patent No 1,118,014). Box: 263x263x40mm.
Historical Significance: A second edition of the Jennings test was produced by the C H Stoelting Company of Chicago after 'extensive use of the first edition found that certain colors indicating color blindness were often selected by persons with a normal color sense.' The objectional colours were removed and others substituted in the second edition. Ref: JAMA Feb 7, 1931, Jennings was Professor of Diseases of the Eye at Barnes University, St Louis, and surgeon to the St Louis and San Francisco railroad system.
How Acquired: Purchased by Kett Museum
Date Acquired: Sept 2013
Condition: Fair
Location: Archive room. West wall. Unit 1 Drawer 2

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