the big Rob Roy get derailed in 1868, some lucky guy had a camera to capture the effort to get it back on the rails

found on Historical Indulgences http://tuesday-johnson.tumblr.com/

It was one of the Gooch Waverly class, that were used mostly in South Wales. Read more and see more of them at http://spellerweb.net/rhindex/UKRH/GreatWestern/Broadgauge/BGLocos/Waverley.html