Covered freight car, model 11-270. USSR, 1986. Widely used in Russia.
Two variants of main body: details marked "V" for "vertical" mode, "H" - horizontal (see the picture).
Two variants of underbody: one with fixed couplers for stand model, other with pockets for Kadee coupler.
Details marked "Thick" are thicker than basic variants, because I've got notes that basic details are not strong enough for some printers.
Model on the photos is printed in "vertical" mode. Filament - Colorfabb PLA/PHA, layer height 0.1 mm.
Bogie download here:
https://www.prusaprinters.org/prints/15680-szhdrzhd-railcar-bogie-187-h0
The author hasn't provided the model origin yet.