Snellen letter chart on white plastic
 Catalogue Number: 2781 Snellen letter chart on white plastic Category: Equipment Sub-Category: Visual Acuity, Contrast sensitivity tests Time Period: 1940 to 1999 Description Of Item: Conventional Snellen letter chart on white diffusing plastic sheet, 200 x 480 mm, for measuring visual acuity at 6 metres, 8 rows of letters with size range from 6/5 to 6/60 as indicated with numbers on each row. Historical Significance: This is a conventional Snellen chart of unknown origin and date designed to be hung on a wall (although there is no hole for this) or in a test chart array trans-illuminated from behind Condition: Good Location: Archive room. West wall. Unit 4 Drawer 3 |