On an old steam boiler pressure gauge on C.P.R. 0-6-0 2018 preserved at Heritage Park's roundhouse
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/29102689@N06">RAF-YYC</a> from Calgary, Canada
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/raf_yyc/2800301396/">Canadian Pacific pressure gauge</a>