General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

METAL/ GLASS/ SYNTHETIC

Dimensions

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

Length

83.5 cm

Width

45.5 cm

Height

48.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Astronomy

Category

Research

Sub-Category

N/A

Manufacturer

AKA

TOEPFER

Country

German Democratic Republic

State/Province

Unknown

City

Potsdam

Context

Country

Canada

State/Province

Ontario

Period

C. 1909 - C. 1965

Canada

THE EARLY SPECTROSCOPIC STUDIES AT THE DOMINION OBSERVATORY RESULTED IN THE ESTABLISHMENT OF THE DOMINION ASTROPHYSICAL OBSERVATORY WHICH PUT CANADA AT THE FOREFRONT OF SUCH STUDIES/ MEASURING MACHINES WERE A KEY ELEMENT OF RESEARCH EQUIPMENT USED FOR THESE STUDIES

Function

TO MEASURE SOLAR SPECTRA - POSITIONS OF SOLAR LINES MEASURED WITH COMPARISON LINES PLACED ON SPECTRUM AT TIME OF EXPOSURE

Technical

DESIGNED SPECIFICALLY FOR SPECTRASCOPIC STUDIES; UTILIZED 18TH & 19TH CENTURY MICROMETERS; USED PRECISION SCREWS TO FACILITATE MEASUREMENT TAKING; TOEPFER (ALONG WITH ZEISS (700222)) WAS AMONG THE LEADING MANUFACTURERS OF ITS TIME - ARTIFACT IS A GOOD DISPLAY OF THE GERMAN WORKMANSHIP OF THAT PERIOD.

Area Notes

Unknown

Details

Markings

PLATE: 'Otto Toepfer & Sohn/ Werkgtatten/ for wissenschaftliche Instrumente/ POTSDAM'

Missing

From CA of 01/28/2002 by Matthew Bruce: No - appears complete

Finish

BASE & FRAME PAINTEDBLACK, DULL-SILVER & BRASS-COLOURED PTS

Decoration

N/A