Olivetti Summa Prima 20 (pre-decimal)

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This mechanical calculator is from the 1960s and dates from pre-decimalisation in 1971.

Manufacturer: Olivetti
Date: 1961

Other Systems Related To Olivetti Summa Prima 20 (pre-decimal):

Item Manufacturer Date
Olivetti Elettrosumma 22 Olivetti 1958
Olivetti Summa Prima 20 Olivetti 1966
Olivetti Summa Quanta 20 Olivetti 1972
Olivetti Logos 9 Calculator Olivetti 1980

This exhibit has a reference ID of CH43093. Please quote this reference ID in any communication with the Centre for Computing History.


Olivetti Summa Prima 20 (pre-decimal)

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