Technophone 'EXCELL PC105T' mobile telephone, 1986

Technophone EXCELL PC105T mobile telephone, manufactured by Technophone Limited, Camberley, Surrey, England, 1986.

Released in 1986 and marketed as the first phone to fit in a shirt pocket, the EXCELL PC105T was the brainchild of Nils Martensson a former employee of mobile technology giant Sony Ericsson. The phone was developed with a grant from the UK's Department for Trade and Industry, and its small size inspired government policy makers to see the mass-market potential of mobiles, even though at £1990 when first sold it was far too expensive for most people to be able to own a phone like this.