Telescope
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1983.0245.001
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- OBJECT TYPE
- N/A
- DATE
- 1880
- ARTIFACT NUMBER
- 1983.0245.001
- MANUFACTURER
- FOSTER, J.
- 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
- BRASS BODY/ GLASS EYEPIECE AND LENS/ LEATHER-COVERING
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 23.5 cm
- Width
- 5.0 cm
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Astronomy
- Category
- Observation equipment
- Sub-Category
- N/A
Manufacturer
- AKA
- FOSTER
- Country
- Canada
- State/Province
- Ontario
- City
- Toronto
Context
- Country
- Unknown
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
FOSTER WAS ONE OF THE FIRST MANUFACTURERS OF INSTRUMENTS ON A COMMERCIAL BASIS IN CANADA; TELESCOPE WAS USED BY TOPOGRAPHICAL SURVEYS OF CANADA; USED EXTENSIVELY FOR EXPLORATORY TRAVERSES OF WATERWAYS OF THE CANADIAN NORTHWEST. - Function
-
USED FOR MEASURING SMALL ANGULAR SEPARATIONS IN ASTRONOMY AND SURVEYING. - Technical
-
MICROMETER USED BY THE TELESCOPE EMPLOYS A SPLIT LENS PRINCIPAL, WHICH WAS FIRST CONCEIVED BY BOUGUER IN FRANCE C. 1748 (TS 63). - Area Notes
-
Unknown
Details
- Markings
- 'J. FOSTER TORONTO' ENGRAVED ON EYEPIECE BASE
- Missing
- N/A
- Finish
- BROWN LEATHER GRAIN COVERING ON SHAFT
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
FOSTER, J., Telescope, circa 1880, Artifact no. 1983.0245, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1983.0245.001/
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