This object is part of a collection relating to the history and development of computing and other information technology assembled by Assoc Professor Allan Bromley of Sydney University, comprising of calculators, mechanical and electronic analogue computers, computer components, kit computers, education computers, and associated ephemera.

Allan Bromley was a lecturer and researcher at the University of Sydney Basser Department of Computer Science from 1978 until his untimely death in August 2002. He specialised in Computer Architecture, Computer Logic and in particular the History of Computing. He was regarded as the world authority on Charles Babbage's Calculating Engines (instigating the rebuilt of DE2 at the Science Museum London) and the Ankithera Mechanism and had extensive knowledge on calculators, analogue computers, logic, stereopsis, totalisators, clocks and time keeping and mechanical engineering.

Unknown

Mechanical addiator type calculator with case, note paper and packaging, Addiator Sterling Pocket, metal / paper / leather, Addiator Company, Germany, 1920-1940

This troncet is in a leather notebook case with stylus, notepaper and three copies of the instruction booklet all in a cardboard slipcase. [This may be an original release of the Sterling Addiator]

This version is not branded on the actual calculator but the instructions are clearly of an English version of the Addiator Calculating Machine.

Made: 1920 - 1940

2010/1/212

1920 - 1940

22 mm

122 mm