SECR diagram 52 60ft all third coach
Introduced between 1918 and 1923, as part of plans for electrification, but coaches ended up being steam hauled till withdrawn in early 1960s.
Basic but found to be good 'people carriers' so used in all area of Southern, not just ex SECR.
At least one ended up part of a push pull set in BR days.
Requires chassis, bogies etc.
HO scale(1/87 3.5mm/ft)
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more 3d printed models from Recreation21 here
http://www.rue-d-etropal.com/3D-printing/3d_printed_designs.htm
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