General Information

Serial #

20453

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

GLASS THERMOMETER/ CERAMIC SCALEMOUNT/ WIRE HANGER, BRACKETS/ ALCOHOL

Dimensions

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

Length

28.3 cm

Width

3.5 cm

Height

1.2 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Meteorology

Category

Atmospheric temperature measurement

Sub-Category

N/A

Manufacturer

AKA

Calderara

Country

England

State/Province

Unknown

City

London

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

POSSIBLY A TYPE OF THERMOMETER USED AT CANADIAN METEOROLOGICAL OBSERVING STATIONS.

Function

AN INSTRUMENT THAT MEASURES THE LOWEST AIR TEMPERATURE.

Technical

THIS APPEARS TO REPRESENT AN OLDER STYLE OF THERMOMETER,IN WHICH THE SINGLE TUBE IS MOUNTED ON A CERAMIC SCALE CALIBRATED SO THAT THE THERMOMETER IS HUNG VERTICALLY, RATHER THAN HORIZONTALLY LIKE 870662. A SIMILAR INSTRUMENT IS ILLUSTRATED IN PATTERSON'S 1930 GUIDE TO OBSERVERS, BUT NOT IN MIDDLETON'S 1941 GUIDE.

Area Notes

Unknown

Details

Markings

Black lettering on scale reading 'THE ONTARIO HUGHES-OWENS CO. LTD., OTTAWA/MADE BY S. & A. CALDERA, LONDON, ENGLAND' & '20453', and on back '34911'& '269 5 95'/black markings on scale/black markings on glass for -80 to +110, and '20453'.

Missing

SCALE ON WHICH THERMOMETER IS MOUNTED IS BROKEN, WITH LARGE PIECE DETACHED. From CA of 12/23/1993 by Tony Missio: Undetermined

Finish

CLEAR, COLOURLESS THERMOMETER WITH WHITE BACK/ WHITE CERAMIC.

Decoration

N/A