In addition to poppet valves, no. 1188 locomotive also received a full skyline casing treatment in an attempt at smoke control. Our models represent the locomotive as seen in rare color photos later in her career with green cab roof and tender deck. No. 5038 saw multiple changes to her roof line and smoke lifters but we like this c. 1941 variety the best. With oversized smoke lifters, pilot deck shield and a partial skyline casing over the smokebox, she fits right in with the Fleet of Modernism era. No. 5399 was the most mechanically successful of the poppet valve experiments, leading to their inclusion on the T1 Duplexes. Lima also took some liberties with a little streamlining on the running boards during her rebuild. Add in a front end throttle cover and you've got a truly unique K4. 5399 recieved the usual front end pilot and smokebox changes in the mid 1940s and we're offering both variations with appropriate period paint and lettering.