On Fri, 27 Jan 2012 08:36:15 -0800 (PST) Nick Hopton <nhopton at gmail.com> wrote: > It sounds as if you need this: > > http://digimap.edina.ac.uk/webhelp/os/data_information/os_data_issues/ng_converter.htm > > Many thanks I've been wanting something like this but have been too busy to go searching. mick