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quizzing glass
MAGNIFIERS AND QUIZZING GLASSES
quizzing glass
Frank Butterworth Ltd
Europe: United Kingdom, England, Warwickshire, Birmingham
Mid 20th c.
tortoiseshell; glass
lens aperture: 22 mm; overall: 63 mm x 31 mm
2021.435
MAGNIFIERS AND QUIZZING GLASSES
quizzing glass
Frank Butterworth Ltd
Europe: United Kingdom, England, Warwickshire, Birmingham
Mid 20th c.
tortoiseshell; glass
lens aperture: 22 mm; overall: 63 mm x 31 mm
Quizzing glass made from a single slab of grey-ish brown mottled real tortoiseshell (resembling horn). Pear-shaped with round lens rim and fenestrated handle with single large pinhole between.
2021.435
Gift of Mr Colin Butterworth, 2021