A flatcar, with integral stakes (4 feet long) that can be trimmed or removed as required.
There are supports for a handbrake wheel and shaft (not supplied) at one end that need to be drilled out.
Based on the rolling stock of the Ohio River & Western Railway.
This model is designed for N gauge couplers (microtrains 1015).These can be screwed to the mounting block at each end.The colour photo shows one finished with a pair of my trucks (available separately).
Instructions .
Now with separate brake parts (air and vacuum), to be found attached to the bolsters. Remove these and use whichever is appropriate .
With added protection for the stakes.
I've made the stakes 50% thicker to survive printing.