GCR O4/8 loco
Originally built for the GCR and ROD during WW1.
When Thompson took over after Gresley died, he started a major rebuild, anfd some O4 locos, both original and ROD were rebuilt with B1 type boilers and cabs.
Continued in service till 1960s.
Requires finishing off, wheels etc
Scale N (1/148)
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more info about O4 locos here
https://en.wikipedia.org/wiki/LNER_Class_O4
more 3d printed models from Recreation21 here
http://www.rue-d-etropal.com/3D-printing/3d_printed_designs.htm
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