General Information

Serial #

N/A

Part Number

1

Total Parts

6

AKA

N/A

Patents

N/A

General Description

.1 SYNTHETIC BASE; BRASS & OTHER METAL WORKING PARTS; GLASS SPIRIT LEVEL; LEATHER STRAPS TO HOLD.3/.2 METAL & GLASS INCLINOMETER WITH SPIRIT LEVEL/.3 SIMULATED LEATHER COVERED INCLINOMETER CASE WITH METAL HARDWARE & FABRIC LINING/.4 METAL (ALUMINUM?) COVER WITH LEATHER STRAP

Dimensions

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

Length

42.5 cm

Width

14.0 cm

Height

17.8 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Mining and Metallurgy

Category

Mineral exploration

Sub-Category

N/A

Manufacturer

AKA

Berg

Country

Sweden

State/Province

Unknown

City

Stockholm

Context

Country

Canada

State/Province

Ontario

Period

1960S

Canada

INSTRUMENT USED BY PROSPECTORS IN CANADA. IT WAS PROPERTY OF O'BRIEN GOLD MINE CO. OF OTTAWA IN 1960S. DONOR HAD FLOWN MEN & EQUIPMENT INTO BUSH & TO ORE PROCESSING PLANT IN DELORO, ON, ON MOIRA RIVER; WHEN MINE WENT OUT OF BUSINESS, HE ACQUIRED MAGNETOMETER & GURLEY CIRCUMFERENTOR

Function

INSTRUMENT USED BY PROSPECTORS & GEOLOGISTS TO MEASURE INTENSITY & DECLINATION OF EARTH'S MAGNETIC FIELD.

Technical

EXAMPLE OF SIMPLE FORM WIDELY USED MAGNETOMETER USED IN FIELD TO DETECT ORE BODIES. IT GAVE "RELATIVE" MEASUREMENTS RATHER THAN ABSOLUTE MEASUREMENTS: MAGNETIC FIELD OF ORE BODY ATTRACTS NEEDLE OF MAGNETOMETER/INCLINOMETER & BY MAKING SERIES OF OBSERVATIONS AROUND SUSPECTED ORE BODY, EXTENT & SIZE COULD BE ESTIMATED.

Area Notes

Unknown

Details

Markings

.1 INCISED GOLD LETTERING ON INSTRUMENT READS "FR.J.BERG STOCKHOLM"/.2 INCISED LETTERING ON COMPASS FACE READS "FR.J.BERG/ STOCKHOLM/ SB/ 9531"

Missing

APPEARS COMPLETE From CA of 12/03/2001 by Matthew Bruce: Yes - empty fixtures and spring clamps imply missing parts

Finish

.1 BROWN BASE; BLACK PAINTED METAL PARTS; BRASS COLOURED PARTS; BRUSHED & PLATED PARTS; BROWN LEATHER; COLOURLESS TRANSPARENT BLADE HOLDER/.2 BLACK PAINTED CASING; BRASS COLOURED & BRUSHED PARTS; COLOURLESS TRANSPARENT GLASS; BRUSHED METAL FACE/.3 MAROON COVERING, PINK LINING/.4 PAINTED BLACK, BROWN LEATHER

Decoration

N/A