Case, lens

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Ingenium, 1974.0488.002
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OBJECT TYPE: hard bodied/hinged lid
DATE: 1905
ARTIFACT NUMBER: 1974.0488.002

MANUFACTURER: Unknown
MODEL: Unknown
LOCATION: Unknown

More Information

General Information

Serial #: N/A
Part Number: 2
Total Parts: 24
AKA: N/A
Patents: N/A
General Description: Mahogany (?) wood case; brass fittings; felt.

Dimensions

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

Length: 33.0 cm
Width: 21.0 cm
Height: 12.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Astronomy
Category: Observation equipment
Sub-Category: N/A

Manufacturer

AKA: Unknown
Country: Unknown
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Ontario
Period: From 1905-1974
Canada: A major piece of the original equipment of the Dominion Observatory, it played an important role in the early astronomical research done in Canada, & later was extensively used in public education programmes.
Function: To hold a telescope lens when not in use.
Technical: Telescope which had optics made by a premier optician of the time & mounting also made by one of the best manufacturers of the time. It was one of the largest refracting telescopes in the world when it was built. The original 15" doublet was unusual as flint element placed ahead of crown - supposed to help reduce condensation problems.
Area Notes: Unknown

Details

Markings: Printed paper label on case front reads "Eyepiece for 15"/ Please return to proper place/ after using"; "14" handwritten in blue ink in upper right corner of label.
Missing: N/A
Finish: Mahogany (?) wood case has brass fittings; some internal supports lined with green felt.
Decoration: N/A

CITE THIS OBJECT

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

Unknown Manufacturer, Case, lens, circa 1905, Artifact no. 1974.0488, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/item/1974.0488.002/

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