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'Phanar' sphero-cylindrical lens and envelope
OPHTHALMIC LENSES
lens; lens envelope
Norddeutsch Optik GmbH
Europe: West Germany, Hamburg
Mid-late 20th c.
glass; paper
envelope: 66 mm x 60 mm; overall (lens): 47 mm

Round glass sphero-cylindrical lens blank, edged, with a small indent to one outer surface edge, marked in red. Together with original supplier's square-shaped brown paper envelope, front overprinted in dark blue, with cog-wheel logo and brand name, plus company name and place. Lens powers denoted in pencil.


2018.723

Gift of Mr John Dixon Salt FCOptom, 2018



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