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Barograph clock by Alexander Cumming

Time Measurement

1766

Surveyor's compass

Surveying

1695-1766

F. Casartel, alcohol thermometer, 1720-1750

Meteorology

1720-1750

Magnetic compass, European, 1700-1730

Surveying

1700-1730
Pair of alcohol and mercury Fahrenheit thermometers, by Richard Adie, Liverpool, 1835-1875. Scales range (-70 to +70 degrees) and (-30 to +110 degrees), respectively.

Pair of alcohol and mercury Fahrenheit thermometers, 1835-1875

Meteorology

1835-1875
Henry Chamberlain Russell type hand anemometer with leaflet, unsigned, (British?), 1878-1883. Incomplete, originally fitted with a 2 minute sand glass attached to bracket on arm.

Hand anemometer, Henry Chamberlain Russell type, 1878-1883

Meteorology

1878-1883
McKellen's 'Treble Patent' plate camera.

McKellen Plate Camera

Photographic Technology

1885-1895