General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

WOOD CASE & SCALES/ CARDBOARD INSTRUCTION SHEET AFFIXED TO INTERIOR OF COVER/ METAL & SYNTHETIC WORKING PARTS/ FIBRE COVERED METAL WIRE/ GLASS WINDOW

Dimensions

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

Length

43.2 cm

Width

12.7 cm

Height

12.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Measurement

Sub-Category

N/A

Manufacturer

AKA

Sandwich

Country

United States of America

State/Province

Illinois

City

Sandwich

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

PART OF COLLECTION OF MR. JOSEF ELSENER; HE WAS SWISS BORN & TRAINED AS ARMOURER, EMIGRATED TO CANADA IN 1952 & BECAME BUSINESSMAN. HIS COLLECTION OF MORE THAN 1000 PIECES WAS FOCUSED ON FINELY MADE APPARATUS INCLUDING MACHINE TOOLS, SURVEYING EQUIPMENT, MEDICAL APPARATUS & SOME ELECTRCAL TEST & RADIO EQUIPMENT.

Function

INSTRUMENT USED IN LABORATORY TO MEASURE ELECTRIC RESISTANCE IN OHMS.

Technical

LABORATORY QUALITY INSTRUMENT. IT APPEARS TO USE WHEATSTONE BRIDGE ARRANGEMENT TO BALANCE CURRENT IN TWO PARTS OF ELECTRIC CIRCUIT TO MAKE PRECISE MEASUREMENTS OF CURRENTS & RESISTANCES.

Area Notes

Unknown

Details

Markings

BLACK LETTERING ON CARDBOARD READS "TYPE F/ ILLINOIS DIRECT READING OHMMETER" & "MANUFACTURED BY/ SANDWICH POLE-CHANGER CO.,/ SANDWICH, ILLINOIS." WITH OPERATING INSTRUCTIONS

Missing

LEATHER? CARRYING HANDLE

Finish

WOOD EXTERIOR STAINED BROWN & COATED/ COATED? WOOD SCALES/ BLACK SYNTHETIC/ GREEN FIBRE/ PLATED & METALLIC PARTS/ COLOURLESS TRANSPARENT GLASS/ WHITE? CARDBOARD

Decoration

N/A