The Hanwell Optical Company Ltd
Europe: United Kingdom, England, Hertfordshire, Letchworth
overall: 254 x 188 mm
Leaflet aimed at practitioners promoting a model of projection focimeter. Printed in black, white and red on four sides, folded and holepunched. Includes product specification on back cover. Illustrated with three 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 instrument display illuminated and the lens marking device.
Arthur Bennett Archive