Holder, lens

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Ingenium, 1974.0488.004
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OBJECT TYPE: telescope eyepiece
DATE: 1905
ARTIFACT NUMBER: 1974.0488.004

MANUFACTURER: Warner & Swasey Co.
MODEL: Unknown
LOCATION: Cleveland, Ohio, United States of America

More Information

General Information

Serial #: N/A
Part Number: 4
Total Parts: 24
AKA: Eyepiece holder
Patents: N/A
General Description: brass

Dimensions

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

Length: 17.0 cm
Width: N/A
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: 9.0 cm
Volume: N/A

Lexicon

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

Manufacturer

AKA: Warner Swasey
Country: United States of America
State/Province: Ohio
City: Cleveland

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: Unknown
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: N/A
Missing: N/A
Finish: Brass tubes fitted with flange/collar for mounting. Portion of tube is painted white.
Decoration: N/A

CITE THIS OBJECT

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

Warner & Swasey Co., Holder, lens, circa 1905, Artifact no. 1974.0488, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1974.0488.004/

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