<a href="https://en.wikipedia.org/wiki/Pundit_Light" class="extiw" title="en:Pundit Light">Pundit Light</a>, airfield identification beacon of WWII
Unknown UK military
<a href="https://en.wikipedia.org/wiki/HMSO" class="extiw" title="en:HMSO">HMSO</a>, via <a rel="nofollow" class="external free" href="http://www.airfieldinformationexchange.org/community/showthread.php?961-Landmark-Beacon-Site&amp;highlight=ident%20beacons">http://www.airfieldinformationexchange.org/community/showthread.php?961-Landmark-Beacon-Site&amp;highlight=ident%20beacons</a>