John Wolff's Web Museum

Calculator Prices

This page shows a few references to the original prices of mechanical and early electronic calculators in Australia.

One pound (£1-0-0) became two dollars ($2.00) when Australia changed to decimal currency in February 1966.

One Australian dollar was equivalent to about US$1.10 from the 1950s until the 1980s. In recent years it has ranged from US$0.45 to US$1.08.

Mechanical calculators	Price	Year	Source
Comptometer (Bell Punch) Model 9B, single register, manual	£277-10-0	1965	Sales quotation.
Contex half-keyboard adding machine	£23-10-0	1956	Original invoice.
Contex carry case	£2-15-0	1956	Annotated brochure.
Contex half-keyboard adding machine	£24-15-0	c.1960	Price ticket on machine.
Contex 10-key, Model 10, manual	£42-0-0	1965	Annotated brochure.
Contex 10-key, Model 20, semi-automatic	£89-10-0	1963	Annotated brochure.
Contex 10-key, Model 30, semi-automatic	£98-10-0	1965	Annotated brochure.
Facit Model C1-19, manual, high capacity	£105-3-0	1958	Price ticket on display.
Facit Model CA2-16, fully-automatic	£465-0-0	1963	Annotated brochure.
Madas 20L, semi-automatic	£258-15-7	1950	Agent's price list.
Madas 20AZV, fully-automatic	£417-12-3	1950	Agent's price list.
Madas 20ATZ, fully-automatic, with triplex carriage (link shows later 20ATG)	£550-12-10	1950	Agent's price list.
Madas 20BTZR, fully automatic, with triplex carriage, top of range (link shows similar 20BTG)	$1188	c.1966	Annotated brochure.
Marchant Figurematic, fully automatic	£476-0-0	1954	Sales quotation.
Marchant 8DCR, semi-automatic	£260-0-0	1958	Annotated brochure.
Olivetti Prima 20, 10-key manual add-list machine, sterling currrency	£59-15-0	c.1960	Annotated brochure.
Solo Handy Adding Machine, small rotary adder, decimal currrency	$7.95	9 Nov 1972	Original invoice.
Speedee Add-a-Matic, half-keyboard adder, decimal currrency	$19.95	c.1970	Original invoice.
Walther Comptess S33, 10-key electric add-list machine	$185	1971	Agent's price list.

Electronic calculators	Price	Year	Source
Casio 101	$1670	1966	Former Casio agent.
Canon Canola L121	$196	1971	Annotated brochure.
HP-35 scientific	$266	1973	Annotated brochure.
HP-45 outfit in hard case	$350	1974	Original invoice.
HP-25 programmable	$179	1975	Magazine review.
HP-67 programmable	$495	1977	Original invoice.
HP-71B pocket calculator/computer	$901	1985	Price ticket on original box.