[atckyrre]

Many thanks peeps!

As Stein wrote this is definitely a Vb, since it's from a well known series taken in '42. Sorry for not pointing this out properly. The alternative would be a Va. I'm including the rest of the series. Notice that the aircraft has the Vb cannon bulge and Rotol propeller.
This aircraft is definitely called Litago, which is the Norwegian equivalent of "Daisy", a typical cow's name.
One question that I haven't found a proper answer to: What size underwing roundel would this Spit carry, with the picture taken the same month as they started repainting the Spits to the C/C1 combination?