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Addiator, Calculating Machine ; Addiator Gesellschaft; 1920-1930; MT2012.141

Addiator, Calculating Machine ; Addiator Gesellschaft; 1920-1930; MT2012.141
Addiator, Calculating Machine ; Addiator Gesellschaft; 1920-1930; MT2012.141Addiator, Calculating Machine ; Addiator Gesellschaft; 1920-1930; MT2012.141Addiator, Calculating Machine ; Addiator Gesellschaft; 1920-1930; MT2012.141
Name/Title
Addiator, Calculating Machine
About this object
Addiator, Calculating Machine in a leather walllet. The Addiator is a mechanical add/subtract calculator. This one was used by Tom Weatherburn in the office of the Mataura A Grade Motor Garage from the 1920s. You can find more information about this Garage on page 120 of our book 'Mataura City of the Falls'.

Variants of the Addiator were manufactured from 1920 until 1982. It is composed of sheet-metal sliders inside a metal envelope. Addiators were rendered obsolete by electronic calculators.

Maker Role
Manufacturer
Date Made
1920-1930
Place Made
Europe, Germany
Medium and Materials
processed material organic leather
processed material metal tin
processed material metal alloy brass
processed material organic fibre paper

Inscription and Marks
Stamped on machine base 'M074154'
on front 'Logo / ADDITION / LSD / ADDIATOR / Patent'
on reverse 'SUBTRACTION /LSD / ADDIATOR / Patent'
Inside wallet, one side ' ADDIATOR / +'
Other side ' - / Addiator '
Stylus has etched 'ADDIATOR'
On Instruction sheet 'CALCULATING MACHINE /Directions for use'

Measurements
Addiator: h 180mm x w 125mm x d 15mm
small
Instruction Sheet: h 290mm x w 210mm
medium
Stylus l160mm x d 30mm
small

Subject and Association Keywords
business/commerce
Credit Line
From the collection of the Mataura and Districts Historical Society Incorporated.
Object Type
equipment
Object number
MT2012.141
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