Pair of Protem aphakic tinted spectacles in plastic case with cleaning cloth

Made:
1970-1990 in Slough
maker:
Combined Optical Instruments Limited

Pair of Protem aphakic tinted spectacles in plastic case with cleaning cloth, Combined Optical Instruments Limited, Slough, 1970-1990

Details

Category:
Optics
Object Number:
1975-399
Materials:
plastic (unidentified), textile and paper (fibre product)
Measurements:
overall: .088kg
spectacles (folded): 35 mm x 140 mm x 55 mm,
case: 45 mm x 150 mm x 73 mm,
type:
spectacles and spectacle case
credit:
Combined Optical Instruments Limited