<a href="//commons.wikimedia.org/wiki/Beamish_Museum" title="Beamish Museum">Beamish Museum</a>, County Durham, England. This is a steam pressure gauge on <i>Locomotion No. 1</i>, one of the locomotives on the <a href="//commons.wikimedia.org/wiki/Beamish_Museum:_Pockerley_Waggonway" title="Beamish Museum: Pockerley Waggonway">Pockerley Waggonway</a>. Note the red line at 50 pounds per square inch.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/58804416@N00">dommylive</a> from Peterlee, UK
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/dominart/13976856799/">Standing Still</a>