Boxed loose prism set labelled 'Prism Exercises - as suggested by- DR'S BERENS, LOSEY & HARDY.'
 Catalogue Number: 4391 Boxed loose prism set labelled 'Prism Exercises - as suggested by- DR'S BERENS, LOSEY & HARDY.' Category: Equipment Sub-Category: Tests of binocular vision Designer/inventor: Conrad Berens, Ray R Losey, LeGrand H Hardy Year Of Publication/Manufacture: c1930 Time Period: 1900 to 1939 Place Of Publication/Manufacture: New York, NY, USA Publisher/Manufacturer: Halpert & Fryxell, inc. Description Of Item: Boxed set of 8 loose prisms and one red filter. Timber box, 92mm W x 93mm D x 58mm H, covered in black leatherette, fitted internally with purple velvet and satin. Gilt lettering on lid 'Prism Exercises - as suggested by - DR'S. BERENS, LOSEY & HARDY'. Gilt lettering inside lid 'HALPERT & FRYXELL, INC,/ NEW YORK-BROOKLYN-YONKERS'. Ref: Routine Examination of the Ocular Muscles and Non-operative Treatment, Conrad Berens, Ray R Losey, and LeGrand H Hardy, American Journal of Ophthalmology Vol 10, Issue 12, December 1927, pages 910-918. How Acquired: Donated by Pamela Sutton Date Acquired: May 2023 Condition: Good, missing one filter and some covering at rear of box Location: Documents Room Red Daytona Cabinet Drawer 2 |