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Viewer microscope, with bead lens, in square body

1888-185

Sample of tobacco ingredient

1900-1930

Professor Hamilton Smith's design of binocular body tube

1851-1900

Electrostatic machine

1801-1900

Electrostatic machine

1812
Large plate electrostatic machine, wood frame, glass plate, metal fittings, European, late 18th or early 19th century. Attached paper tag notes an association with 'Cavalo', presumably Tiberius Cavallo (1749-1809).

Large plate electrostatic machine

1790-1810
"Radium" water filter base jar with perforated earthenware plate and stand, 1901-1930, English

"Radium" water filter base jar with perforated earthenware plate and stand

1901-1930
Piece of stem, red oak, mounted on display plate, Nigeria, 1901-1937

Piece of stem

1901-1937
Specimen of root bark of wahoo bark, North America, 1901-1939

Specimen of root bark of wahoo bark

1901-1939
"Radium" water filter complete with perforated earthenware plate and stand, English, 1901 to 1930

"Radium" water filter complete with perforated earthenware plate and stand

1901-1930
Radium water filter with upper resevoir jar, perforated earthenware plate, and tripod stand, English, 1901 to 1930

Radium water filter with upper reservoir jar

1901-1930
Electrostatic machine, wood base and frame, glass plate, metal fittings, by M. Pillischer, 88 New Bond Street, London, England, 1801-1900.

Electrostatic machine

1801-1900
Electrostatic machine, wooden frame, glass plate, metal fittings, by Cary of London, first half of the 19th century

Electrostatic machine

1801-1850
Electrostatic machine, wood base and frame, glass plate, metal fittings, European, 19th century

Electrostatic machine

1801-1900
Electrostatic machine, wood frame, glass plate, metal fittings, European, first half 19th century

Electrostatic machine

1801-1850
Electrostatic machine, wooden base and frame, glass plate, metal fittings, European, 19th century

Electrostatic machine

1801-1900
X-ray apparatus, 3 photographic plates only, glass in wood frame, probably French, first half 19th century

X-ray apparatus

1801-1850
Glass plate with date fruit from Mecca, 1930-1931

Glass plate with date fruit from Mecca, 1930-1931

1930-1931