Also got this Russian streamliner loco floor toy with a passenger car that looks to be the same as the Igra pass. coaches from Czech Republic. The loco is missing the correct rear axle but came with the original wheels. I'll add Marx or Hafner T&S couplers to mate them. I have been told the Russian stamping says Kharkiv, but I suspect it refers to the city of Kharkov, although I can find no other online information on it.
One coat hangar, one swizzle stick, a pair of couplers, fixed.
Here is what the Igra passenger coaches look like, but the frame on the above coach looks more like the frame Igra used for the freight cars and tenders.