Operating on behalf of the UK Coastguard, this Seaking was based in the helicopter capital of the UK, Sumburgh in the Shetland Islands.  This was around 1988.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/130275500@N02">G B_NZ</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/130275500@N02/20615367795/">Bristow Seaking G-BDOC at LSI</a>