No idea yet, Graeme. But I'm working on it. It's a strange combination of modern (canopy) and classic (tail) features. And the cowling looks somewhat like a Yak-11.
I think it might be Russian - it has a bit of a Sukhoi/ Lavochkin look about the motor and canopy to me. There appears to be the remains of a Norwegian or Ukranian roundel on the fueslage - very faint, behind the canopy. The tail interestingly looks almost British in design.
The P-36s and P-40s had similarly strange gear with the wheels rotating to perpendicular (wheel sides face forward) before folding rearward instead of inward or outward. (this mechanism was a Boeing design iirc)