One of the last in the old NW colours at the time.  Taken from my room in the DTW Marriott.
<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@N02/16002026467/">Northwest DC-9-50 N766NC at DTW</a>