Alidade
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1977.0219.001
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- OBJECT TYPE
- Straight edge/Graduated/Folding
- DATE
- 1920–1930
- ARTIFACT NUMBER
- 1977.0219.001
- MANUFACTURER
- Raw, J. Frank Co. Ltd.
- MODEL
- Unknown
- LOCATION
- Toronto, Ontario, Canada
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- Aluminium base/ Brass open sights.
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
- 1.0 cm
- Height
- 13.0 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
- Raw
- Country
- Canada
- State/Province
- Ontario
- City
- Toronto
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Used by E,M.R. Made by one of the larger Canadian survey instrument makers of the period. - Function
-
This device is used for taking sights and drawing lines when locating points on a map. It is usually used on a plane table. - Technical
-
A very simple form of alidade for plane table surveys. - Area Notes
-
Unknown
Details
- Markings
- Mfr. Information: 'Made by/ THE J. FRANK RAW Co LTD/ TORONTO' Bears mark: 'T.S. 1957'
- Missing
- None
- Finish
- Black enamel.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Raw, J. Frank Co. Ltd., Alidade, circa 1920–1930, Artifact no. 1977.0219, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1977.0219.001/
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