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Royal Mail GPS trials begin in East Anglia

18 July 2012 Last updated at 19:45 BST

Postal workers in East Anglia are using satellite receivers to map the exact location of every property in a Royal Mail trial to improve sat-nav systems.

The devices record precise property co-ordinates in Essex, Cambridgeshire, Lincolnshire, Norfolk and Suffolk, but do not take photographs.

Nikki Fox reports.

Archive clip courtesy of British Pathe