Chaldron coal wagon - standard gauge
Chaldron wagons have been used by railways since strt of industrial revolution, and some were still in use in the 1960s, in places such as Seaham.
Basedon drawings of a wagon at Seaham.
Chassis adjusted to fit 16.5mm gauge track
Requires wheels and finishing
Scale OO (1/76 4mm/ft)
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more info about Chaldron wagons here
https://en.wikipedia.org/wiki/Chaldron
/and more specifucally one at Seaham
https://www.irsociety.co.uk/Archives/10/chaldron_wagons_seaham.htm
more 3d printed models from Recreation21 here
http://www.rue-d-etropal.com/3D-printing/3d_printed_designs.htm
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