When British Caledonian first started the Manchester (MAN) / London-Gatwick (LGW) service, it was twice daily on these British Island Airways Heralds.  The morning southbound was a nightstop while the morning northbound went through to Blackpool (BLK) to operate for BIA during the day, before returning late afternoon to continue southbound.
The aircraft in the background is an Aviogenex (Yugoslavia) Tu-134A.
Ken Fielding
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/kenfielding/6890684559/">Flickr</a>