Circumferentor
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1978.0973.001
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- OBJECT TYPE
- VERNIER/6-IN.
- DATE
- 1857–1860
- ARTIFACT NUMBER
- 1978.0973.001
- MANUFACTURER
- HEARN, CHARLES
- MODEL
- Unknown
- LOCATION
- Toronto, Ontario, Canada
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 8
- AKA
- N/A
- Patents
- N/A
- General Description
- CIRCUMFERENTOR: BRASS W. GLASS BEZEL; BRASS SIGHT VANES & BOLTS; BRASS COVER/ CASE: SOFTWOOD W. STEEL HINGES & NAILS; LEATHERSTRAPS & FERROUS METAL BUCKLE
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 41.5 cm
- Width
- 17.8 cm
- Height
- 21.5 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Exploration and Survey
- Category
- Measurement-angles
- Sub-Category
- N/A
Manufacturer
- AKA
- HEARN
- Country
- Canada
- State/Province
- Ontario
- City
- Toronto
Context
- Country
- Canada
- State/Province
- Quebec
- Period
- Unknown
- Canada
-
Unknown - Function
-
USED TO DETERMINE DIRECTION, AND MEASURE HORIZONTAL ANGLES. - Technical
-
Unknown - Area Notes
-
Unknown
Details
- Markings
- STAMPED: "Chas Hearn/ Toronto" [WHAT APPEARS TO BE AN "e" AT THE END OF HEARN IS A SCROLL]/ SEE S.I. FOR OTHER MARKINGS
- Missing
- 1 SIGHT VANE & 1 BOLT ARE NOT ORIGINAL. SOME ELEMENTS MAY BE REPAIRED OR REPLACEMENT PARTS (SOLDERED JOIN IN BEZEL; DIAL FOR NEEDLE STOPPER; 2 BOLTS FOR FITTING SIGHTS). SEE S.I. FOR FURTHER INFO.
- Finish
- CIRCUMFERENTOR: LACQUERED BRASS; SILVERED SCALE; BLUED NEEDLE; CLEAR GLASS/ CASE: PAINTED DARK BROWN
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
HEARN, CHARLES, Circumferentor, circa 1857–1860, Artifact no. 1978.0973, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1978.0973.001/
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