General Information

Serial #

1469

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

WOOD CASE WITH METAL HARDWARE/ BRASS CALCULATOR WITH IVORY? AND SYNTHETIC? KNOBS

Dimensions

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

Length

46.7 cm

Width

18.1 cm

Height

9.3 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Mathematics

Category

Calculating devices

Sub-Category

N/A

Manufacturer

AKA

Unknown

Country

France

State/Province

Unknown

City

Paris

Context

Country

Canada

State/Province

Ontario

Period

1880'S - ?

Canada

A FRENCH MADE CALCULATOR USED BY THECANADIAN METEOROLOGICAL SERVICE TO REDUCE THE LABOUR OF RENDERING READINGS FROM METEOROLOGICAL INSTRUMENTS INTO USABLE DATA.

Function

CALCULATOR WHICH PERFORMS ADDITION, SUBTRACTION, MULTIPLICATION, & DIVISION, USED FOR THE REDUCTION OF METEOROLOGICAL OBSERVATIONS FROM ORIGINAL READINGS TO FORMATTED DATA.

Technical

FINE EXAMPLE OF 19TH CENTURY CALCULATING TECHNOLOGY (INVENTED CA. 1820), 'ARITHOMETRE' WAS FIRST REALLY SUCCESSFUL MECHANICAL CALCULATOR & WAS FIRST COMMERCIALLY PRODUCED MACHINE TO MULTIPLY, & LATER TO BE CAPABLE OF DOING DIVISION. THESE WERE MADE UNTIL CA. 1920.

Area Notes

Unknown

Details

Markings

Incised mfr's logo reading 'Thomas de Colmar, INVENTEUR/ s'addresser/ 44, RUE de CHATEAUDUN, 44/ PARIS No. 1469/ EXPOSITION, 16, RUE DE LA TOUR DES DAMES'/ incised numbers and control functions./ Black lettering on lid reading 'Arithmometre'.

Missing

None apparent.

Finish

VARNISHED BROWN WOOD CASE/ UNFINISHED BRASS.

Decoration

N/A