MusEYEum Online Catalogue

Projection Focimeter Mark II Operating Instructions
ARCHIVAL ITEMS
instruction leaflet
Letchworth Optical Instrument Co
Europe: United Kingdom, England, Hertfordshire, Letchworth
c.1965
paper
overall: 254 x 207 mm

Instruction leaflet for a model of projection focimeter. Printed in black, white on eight pages, stapled and holepunched. Includes note on fitting the bulb correctly on back cover. Illustrated with eight black and white photographs of the product including, on the front cover, its use with spectacles mounted by a female operator measuring the power of a spherical lens and, inside, the parts of the instrument identified, the instrument display screen illuminated and the lens marking device.

2004.891

Arthur Bennett Archive