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 |