Grout streak retinoscope No. 230-B

Catalogue Number: 2231
Grout streak retinoscope No. 230-B
Category: Equipment
Sub-Category: Retinoscope
Designer/inventor: James H Grout
Year Of Publication/Manufacture: c1945
Time Period: 1940 to 1999
Place Of Publication/Manufacture: USA
Publisher/Manufacturer: American Optical Co
Description Of Item: Black crackle finish metal and glass battery handled retinoscope. Marked 'No.230-B/ GROUT STREAK RETINOSCOPE/ AMERICAN OPTICAL CO/ USA/ MADE IN USA'. 262x30mm
Historical Significance: This is an early streak retinoscope. James H Grout filed for a patent for a retinoscope 2204014 on October 10, 1938. No patent details are given on this instrument. An article 'Functional advantages of the AO-Grout Streak Retinoscope' written by James H Grout was published in American Optical Vision Vol 33 No 1 March 1949, British Optical Association Museum, Item 2005.711
How Acquired: Purchased by Kett Museum via EBay
Date Acquired: 22.07.2013
Condition: Good
Location: Archive room. West wall. Unit 6 Drawer 3

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