This is the build plate for Cornwall Street Railway Light & Power 14, a 1929 steeplecab locomotive preserved at the Illinois Railway Museum.
This locomotive was built in January 1929 but not sold until 1936 to Springfield Terminal, an 8-mile line between Springfield Vermont and Charleston New Hampshire. In 1956 it was sold to Cornwall Street Railway in Ontario Canada. It has been at the Illinois Railway museum since 1972 and is operational.
More information at the link below
https://www.irm.org/player/csrlp14/
The model is a scan of the original build plate, still mounted to the side of the locomotive and is presented here at full scale. It measures roughly 10.25" across, so scaling it down will be necessary unless your printer has at least a 260mm x 260mm build plate. As displayed on the locomotive this build plate is entirely painted red to match the locomotive. While not authentic, it would look very nice as a multicolor print with the background red and lettering and border a lighter color.
The author marked this model as their own original creation.