General Information

Serial #

E11446

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

METAL CASING (ALUMINUM?)/ GLASS FRONT & READING LENS/ METAL PARTS/ LEATHER CASE WITH FOAM RUBBER PADDING, FABRIC LINING, METAL HARDWARE

Dimensions

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

Length

12.7 cm

Width

15.6 cm

Height

6.6 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

Short Mason

Country

England

State/Province

Unknown

City

Unknown

Context

Country

Canada

State/Province

Unknown

Period

Unknown

Canada

BRITISH MADE INSTRUMENTS OF TYPE USED BY SEVERAL CANADIAN GOVERNMENT DEPARTMENTS, THISEXAMPLE BY GEOPHYSICS DIVISION OF DEPT. OF ENERGY, MINES & RESOURCES

Function

INSTRUMENT THAT MEASURES ATMOSPHERIC PRESSURE BY MEANS OF ITS EFFECT ON ANEROID, OR METAL CHAMBER PARTIALLY EVACUATED OF AIR. THIS TYPE WAS USED IN MEASURING ELEVATIONS.

Technical

EXAMPLE OF 5 INCH DIAMETER BAROMETER OF TYPE MADE BY S&M FROM BEFORE 1912 TO AT LEAST 1950S. LARGER DIAMETER ANEROIDS WERE MORE ACCURATE BECAUSE SMALL MOVEMENTS OF HAND WERE MORE EASILY OBSERVED & BECAUSE WORKS WERE LESS CROWDED. THESE TWO BAROMETERS WERE STORED IN SINGLE CARRYING CASE & PRESUMABLY WERE USED IN TANDEM.

Area Notes

Unknown

Details

Markings

BLACK LETTERING ON DIAL READS 'SURVEYING ANEROID/ NO E 11446/ SHORT & MASON/ LONDON/ COMPENSATED'/ BLACK SCALE MARKINGS & LETTERING / LABEL ON UNDERSIDE READS 'GR 61093/ DO NOT REMOVE THIS TAG' / BLACK HANDWRITTEN LETTERING ON CASE EXTERIOR READS '53035', '53036', 'INV/ 1/5/73'

Missing

CARRYING CASE STRAP

Finish

FLAT BLACK PAINTED CASINGS & LENS MOUNTS/ WHITE DIAL/ PLATED PARTS/ COLOURLESS TRANSPARENT GLASS/ BROWN CASE WITH BLACK LINING

Decoration

N/A