Title
11 Coloured lenses
Identifier
ABDNP:200589c
Description
11 circular glass lenses to cover the eye set in metal frames with small circular handle for holding with thumb and forefinger. Part of colour blindness kit. Colours: 4 black, 1 red, 1 turquoise, 1 orange, 1 green, 1 light royal blue, 1 dark royal blue and 1 opaque. Used as part of the colour blindness test kit and stored within the kit box
Date
1889-1900
Format
Radius (lens) 18mm, thickness 2-4mm, radius (handle) 4mm.
Glass, Metal
Coverage
London, England and New York, USA
Creator
E.B. Meyrowitz