derivative work of the following images: File:National_Grid_for_Great_Britain_with_central_meridian.png licensed with Cc-by-sa-3.0-migrated, GFDL 2007-11-14T17:34:58Z...
Added central meridian line to National Grid for Great Britain.png Derivative works of this file: National Grid for Great Britain with central meridian.gif...
derivative work of the following images: File:National_Grid_for_Great_Britain_with_central_meridian.gif licensed with Cc-by-sa-3.0-migrated, GFDL 2010-02-23T23:22:36Z...
|Description={{en|The [[:en:British national grid reference system]]}} |Source=*[[:File:National_Grid_for_Great_Britain_with_central_meridian.gif|]]...
