Objects

Viewing Record 74 of 156
Previous Record  Next Record
Switch Views: Lightbox | Image List | List

optometrist's slide rule
MANUFACTURING AND DISPENSING EQUIPMENT
slide rule
Carl Zeiss (Jena)
Europe: Germany, Thuringia, Jena; Europe: Italy
20th c.
plastic
overall: 3 x 215 x 38 mm

White plastic slide rule with metal edged slider, flared left end, dioptric and centimetre scales and pointer to end of sliding centre section. Features black and red eyeball symbols and concave/convex lens symbols. German patent. In black skin-covered cardboard slip top case.


2003.225

Ex Keeler Collection



Browse by