General Information

Serial #

61524

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

METAL THEODOLITE/ GLASS AND SYNTHETIC PARTS/ WOOD CASE WITH FELT PADDING AND BRASS HARDWARE

Dimensions

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

Length

32.5 cm

Width

27.0 cm

Height

23.2 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Meteorology

Category

Upper wind speed & direction measurement

Sub-Category

N/A

Manufacturer

AKA

Watts

Country

England

State/Province

Unknown

City

London

Context

Country

Canada

State/Province

Unknown

Period

1940'S TO 1950'S

Canada

USED BY CANADIAN METEOROLOGICAL SERVICE FOR OBSERVING CANADIAN METEOROLOGICAL PHENOMENA.

Function

INSTRUMENT WITH TELESCOPIC SIGHTS FOR ESTABLISHING HORIZONTAL OR VERTICAL ANGLES, USED TO FOLLOW DRIFT OF PILOT BALLOONS TO DETERMINE UPPER ATMOSPHERIC WIND SPEED AND DIRECTION.

Technical

THE MSC TYPE B-1 THEODOLITE WAS AN E.R. WATTS INSTRUMENT MODIFIED BY MSC.

Area Notes

Unknown

Details

Markings

Incised lettering on base reading 'E.R. WATTS & SON LTD./ LONDON' & 'NO 61524'/ plates on base reading 'M.S.C. TYPE B-1/ NO. 61524' & 'MADE FOR/ INSTRUMENTS LTD./ OTTAWA & TORONTO/ MADE IN ENGLAND'/ interior case plate with logo and reading 'ENGINEERS & SURVEYORS', 'INSTRUMENTS & SUPPLIES', & 'E.R. WATTS & SON LTD./ 123, Camberwell Rd. London, England'/ decal reading 'BALLOON THEODOLITE/ INSTRUMENT NO. 61524 DATE 5/8/48 / GRATICULE MARKINGS 1 IN 100/ IMPORTANT: REMOVE BATTERY CELLS FROM INSTRUMENT/ AS SOON AS THEY ARE EXHAUSTED'/ part of decal obscured by typewritten instruction note.

Missing

CASE INTERIOR SUPPORT PIECES DETACHED, MISSING/ ACCESSORIES From CA of 12/17/1993 by Tony Missio: Undetermined

Finish

BLACK WRINKLE AND BLACKENAMEL FINISHED THEODOLITE/ BRUSHED METAL, PLATED AND BRASS COLOURED PARTS/ VARNISHED WOOD CASE WITH GREEN PADDING

Decoration

N/A