Cement bifocal lens
 Catalogue Number: 1739 Cement bifocal lens Category: Spectacles and lenses Sub-Category: Spectacle lenses Year Of Publication/Manufacture: c 1900 Time Period: 1900 to 1939 Description Of Item: A single round lens 36 mm diameter in a shell rim with cemented bifocal segment Rx +0.50 D Add +2.50 D Condition: Very good Location: Archive office. East wall shelves unit 3. Drawer 4 |