T2 arrival - their 737s were quite new when I took this in the mid-70's.  Nice classic scheme with the big roundel on the tail introduced with the arrival of their 737s.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/130275500@N02">G B_NZ</a>
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/130275500@N02/15504345244/">Sabena B737-200 OO-SDL at LHR</a>