Washing the boiler out.
USA Transportation Corp. Class S160 2-8-0 (1945) No. 5820
RichardAsh1981
CC BY-SA 2.0
<a rel="nofollow" class="external free" href="https://www.flickr.com/photos/30661871@N03/49819151837/">https://www.flickr.com/photos/30661871@N03/49819151837/</a>