General Information

Serial #

2388

Part Number

1

Total Parts

3

AKA

N/A

Patents

N/A

General Description

FERROUS METAL BASE & FRAME, PARTS/ BRASS SCALES & KNOBS/ GLASS BAROMETER & THERMOMETER TUBES, LENS, CISTERN WINDOWS/ STEEL? POINTS/ SYNTHETIC COVERED WIRE & WOOD KNOB

Dimensions

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

Length

28.6 cm

Width

28.6 cm

Height

195.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Meteorology

Category

Atmospheric pressure measurement

Sub-Category

N/A

Manufacturer

AKA

Casella

Country

England

State/Province

Unknown

City

London

Context

Country

Canada

State/Province

Ontario

Period

SOMETIME AFTER 1905 TO 1970

Canada

OBSERVATORY TYPE STANDARD BAROMETER, DESIGNED FOR ROYAL KEW OBSERVATORY IN LONDON FOR USE AT MAJOR OBSERVATORIES, INCLUDING DOMINION OBSERVATORY, CANADA'S PREDOMINANT ASTRONOMICAL OBSERVATORY WHICH OPERATED FROM 1905 TO 1970.

Function

AN INSTRUMENT THAT MEASURES ATMOSPHERIC PRESSURE BY MEANS OF ITS EFFECT ON A COLUMN OF MERCURY, OF A TYPE MADE SPECIFICALLY FOR USE AT MAJOR OBSERVATORIES.

Technical

APPEARS IDENTICAL TO OBSERVATORY BAROMETER IN L. CASELLA'S 1871 CATALOG (1); 700216 WAS MADE BY C.F. CASELLA WHO TOOK OVER FIRM IN 1860. SEE ALSO LATER OBSERVATORY STANDARD BAROMETER IN CASELLA'S 20TH CENTURY (UNDATED) CATALOGUE (2), REDESIGNED BUT SIMILAR IN PRINCIPLE.

Area Notes

Unknown

Details

Markings

INCISED LETTERING ON SCALE ON EITHER SIDE OF BAROMETER TUBE READS 'No 2388' & ' C.F. CASELLA & Co/ Makers to the Admiralty & Ordnance/ 11-15 ROCHESTER ROW/ LONDON, S.W.'/ SCALE CALIBRATED IN BLACK FOR 67 TO 85 MM ON ONE SIDE & 27 TO 33 IN ON OTHER/ BLACK LETTERING ON THERMOMETER BACK READS "Casella Co London 184322' WITH KEW OBSERVATORY LOGO 'KO 9'/ BLACK ETCHED ON TUBE SCALE ON THERMOMETER FOR 30 TO 130 F.

Missing

From CA of 11/03/1993 by Tony Missio: Yes - mercury removed

Finish

BASE & FRAME PAINTED DARK GREY & BROWN/ CENTRE POLE PAINTED BLACK/ BRASS COLOURED SCALES, KNOBS, PARTS/ COLOURLESS TRANSPARENT GLASS/ BROWN SYNTHETIC & WOOD

Decoration

N/A