Chris Trotman’s latest creation, Livingston Thompson. The loco is coal fired, with double firebox with tubes going forward and aft through a common water space. The power bogies are Roundhouse but the rest is home built. One of the two fire box doors can just be seen inside the cab; they are opened by pulling the brake standard forward!
See him run on YouTube: https://youtu.be/vAUXj_BmboA. Photo: Chris Trotman.