General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

GLASS, IN WOOD & METAL CASE

Dimensions

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

Length

24.7 cm

Width

22.7 cm

Height

9.0 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

Brashear

Country

United States of America

State/Province

Pennsylvania

City

Pittsburgh

Context

Country

Canada

State/Province

Ontario

Period

C. 1905-1950'S

Canada

CAME ORIGINALLY FROM THE DOMINION OBSERVATORY IN OTTAWA

Function

USED TO REFLECT THE LIGHT OF A CELESTIAL BODY IN A CONSTANT DIRECTION FOR STUDY WITH A FIXED INSTRUMENT (SUCH AS A TELESCOPE) BY MEANS OF A MOVING MIRROR.

Technical

Unknown

Area Notes

Unknown

Details

Markings

ON BACK OF MIRROR, 'J.A. Brashear/ Pittsburg/ PA/ 1884'/ ON BOTTOM OF CASE: 'Tin Box/ 8 3/4 diameter/ 1 5/8" high no bottom/ Cover to fit tight inset 1/4 inc./ Make overlap of cover/ as narrow as possible'

Missing

N/A

Finish

CLEAR GLASS, BIT OF SILVER COLOUR AROUND OUTEREDGE OF BOTTOM/ BASE OF CASE APPARENTLY UNFINISHED WOOD, METAL CASE BLACKENED & RUSTY ON OUTSIDE, SHINY SILVER COLOUR ON INSIDE OF LID

Decoration

N/A