Alidade
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1977.0220.001
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- OBJECT TYPE
- Straight edge/Graduated/Folding
- DATE
- 1921
- ARTIFACT NUMBER
- 1977.0220.001
- MANUFACTURER
- Cooke, Troughton & Simms Ltd.
- MODEL
- Unknown
- LOCATION
- London, England
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- Boxwood/Brass.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 45.7 cm
- Width
- 1.9 cm
- Height
- 8.9 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Exploration and Survey
- Category
- Measurement-direction
- Sub-Category
- N/A
Manufacturer
- AKA
- Cooke Troughton Simms
- Country
- England
- State/Province
- Unknown
- City
- London
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Used by EMR (now Natural Resources Canada). Surveys conducted were probably done for Geological Survey of Canada. - Function
-
Surveying accessory used on a plane table for taking sights and drawing lines when locating points on a map. - Technical
-
Typical alidade made by largest, noted U.K. survey and astronomy instrument makers. - Area Notes
-
Unknown
Details
- Markings
- Mfr. Information: 'COOKE. TROUGHTON & SIMMS. LTD LONDON YORK & CAPE TOWN' Bears mark: 'T.S. 2592' Scale information: 'INCHES 10THS & 50THS' ; 'YARDS 2 INCHES = 1 MILE'
- Missing
- None.
- Finish
- Wood varnished/Brass blackened.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Cooke, Troughton & Simms Ltd., Alidade, after 1921, Artifact no. 1977.0220, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1977.0220.001/
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