GSR Sentinel steam railcar
Introduced in 1927. Similar design to production articulated version used on the LNER.
withdrawn 1941-2
Requires finishing off, wheels and mechanism etc.
Scale 1/152 2mm/ft (10.5mm gauge track)
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more information on the GSR here
https://en.wikipedia.org/wiki/Great_Southern_Railways#Railcars
more 3d printed models from Recreation21 here
https://www.rue-d-etropal.com/3D-printing/3d_printed_designs.htm