LNER engine number 4468, better known as Mallard which still holds the world speed record for the fastest steam engine. It's not used very much now, other than as an exhibit in the museum and for weddings on its footplate, apparently.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/41894148532@N01">Neil T</a> from Bradford, United Kingdom
CC BY-SA 2.0
<p><a rel="nofollow" class="external text" href="https://www.flickr.com/photos/neilt/2701810/">Mallard</a>
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