Tri-ang Diesel Railcar
R.158 Dummy Power Car
Type "a" First Version
Coach Bogie used on this very early version
With Mk 2 Open Coupling
Type "b" Second Version
New Bogies fitted
With Mk 3 Tensionlock Coupling
Type "b" Second Version, Issue 2, with ribbed roof
Type "c" Third Version
Ribbed Roof
Smaller size Numbers, different buffers
Type "d" Fourth Version
Yellow front panel