General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

BRASS; GLASS; OIL BUBBLE FLUID. MIRROR CONSISTS OF A FRONT SURFACE OF ALUMINUM WITHOUT AN OVERCOAT

Dimensions

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

Length

32.0 cm

Width

15.0 cm

Height

47.0 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

FUESS

Country

Germany

State/Province

Unknown

City

Berlin-Steglitz

Context

Country

Canada

State/Province

Ontario

Period

C.1905-1975

Canada

USED AT THE DOMINION OBSERVATORY IN CONJUNCTION WITH RESEARCH INSTRUMENTS IN THE STUDY OF THE SUN.

Function

USED TO DIRECT SUNLIGHT IN A CONSTANT DIRECTION FOR STUDY WITH A FIXED INSTRUMENT SUCH AS A TELESCOPE, SPECTOGRAPH, OR MICROSCOPE

Technical

A NICE EXAMPLE OF A TYPE OF DEVICE WHICH ORIGINATED IN THE 18TH C. FOR MICROSCOPICAL STUDIES BUT ADAPTED IN THE THIRD QUARTER OF THE 19TH C. FOR SPECTROSCOPIC STUDIES OF THE STARS AND THE SUN.

Area Notes

Unknown

Details

Markings

ETCHED ON BASE: 'R.FUESS/ STEGLITZ-BERLIN/ DOM.OBS/ 226'

Missing

ORIGINAL MIRROR REPLACEDBEFORE 1975 & BUBBLE FLUID REPLACED. From CA of 01/09/2002 by Matthew Bruce: No - appears complete

Finish

HOUR CIRCLE SILVERED, SIGHTING DISC WHITE ENAMEL/ SIGNS OF ORIGINAL LACQUER ON BASE

Decoration

N/A