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focimeter
OPTOMETRIC INSTRUMENTS
focimeter
Emil Busch AG
Early 20th c.
metal
1999.4080
OPTOMETRIC INSTRUMENTS
focimeter
Emil Busch AG
Early 20th c.
metal
Focimeter. Black metal with two feet and back prop adjacent to bulb unit. Large focusing wheel to side. Removable bulb unit with rounded end. White plastic switch, brown electric flex and two-pin plug.
1999.4080
Gift of Mr Douglas S Goldman