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Hamblin-Lister lamp bulb
OPTOMETRIC INSTRUMENTS
lamp bulb
Theodore Hamblin Ltd
Europe: United Kingdom, England, London
Mid 20th c.
glass; metal
overall: 78 x 50 mm
2005.228
OPTOMETRIC INSTRUMENTS
lamp bulb
Theodore Hamblin Ltd
Europe: United Kingdom, England, London
Mid 20th c.
glass; metal
overall: 78 x 50 mm
Glass electric light bulb with partially blackened surface to provide large and small spot source illumination. 240 V. Brass bayonet fitting.
2005.228
Gift of Essex County Hospital, 2005