Sinclair Executive Calculator
The Sinclair Executive calculator was the worlds first pocket calculator and was launched in August 1972 at a price of £79.95 + VAT.
The advert described it as being "as thick as a cigarette packet", reflecting Clive Sinclair's stated belief that "One must always bear a packet of cigarettes in mind as the ideal size"; it was a running joke at Radionics that Sinclair, who smoked 40 cigarettes a day at the time, designed everything to be the size of a packet of 20!
Date of Manufacture: August 1972
Quantity Available: 1
Working Condition: Working
Physical Condition: Good
Original Box: Yes