MusEYEum Online Catalogue

Welcome to the online catalogue of the British Optical Association Museum. Here you can search for both museum artifacts and archives. Data is transferred from our Collections Management System to this website on a regular basis.


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Bi-Liptic Bi-Focal Lenses
bifocal lens
Early 20th c.
bifocal segment: 19 mm; case: 20 mm x 68 mm x 68 mm; lens: 47 mm

'Bi-Liptic' solid bifocal lens. Round. Glass. Round segment. Contained within hinged brown leather-covered presentation case with friction catch, cream-coloured velvet and silk lining and gold lettering on both outer surface of lid and lining of lid.


Gift of Mr Rian Love/OATS/City University, 2015

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