Octant

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Ingenium, 1983.0362.001
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OBJECT TYPE
N/A
DATE
1799–1819
ARTIFACT NUMBER
1983.0362.001
MANUFACTURER
Cook, Wm.
MODEL
Unknown
LOCATION
London, England

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
2
AKA
N/A
Patents
N/A
General Description
Wood/ brass/ ivory/ wood box

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length
30.0 cm
Width
25.0 cm
Height
6.9 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Exploration and Survey
Category
Measurement-distance
Sub-Category
N/A

Manufacturer

AKA
Cook
Country
England
State/Province
Unknown
City
London

Context

Country
Canada
State/Province
Nova Scotia
Period
Mid 19TH c. FF?
Canada
Octant originally belonged to Samuel O'Donnell (1801-1883) of Amherst, Nova Scotia. He was the deputy crown land surveyor of Cumberland County. The octant was passed down to his granddaughter, who gave it to Beaver Hall Antiques in 1945.
Function
Used in navigation to measure the altitude of the sun, moon, stars etc, especially at sea, in order to determine latitude & longitude.
Technical
Octant manufactured by Wm Cook. Octants were a huge advantage over previously used instruments to determine a position at sea. They were simple instruments based on the application of optics. The scale reads from -10 degrees to 110 degrees, and the vernier reads from 0 to 20 units.
Area Notes
Unknown

Details

Markings
Ivory insert with incised black writing reading 'COOK*LONDON'/ Ivory inserts with incised black scales & numbers/ paper mfr's label on box lid interior reading 'Wm COOK/ MATHEMATICAL/ INSTRUMENT MAKER/ 178 High Street, Shadwell,/ LONDON/ Makes and Repairs,/ Sextants, Quadrants & Telescopes/ Improved Azimuth, Amplitude, Storm, Steering & Hanging Compasses/ McCulloch's Patent Azimuth & Steering Compasses'/ Typed memo & newspaper clipping affixed to lid interior (see supp.inf.)/ painted design on lid exterior consisting of white flag pole with red & white flag & red pennant.
Missing
N/A
Finish
Dark brown lacquered? wood/ box painted dark brown
Decoration
N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Cook, Wm., Octant, between 1799–1819, Artifact no. 1983.0362, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1983.0362.001/

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