The same photo can be found here:
http://www.sci.fi/~ambush/faf/maritime.html
Caption: Norwegian F.346 (which became NK-173) at Stonehaven, Scotland, in the beginning of June 1940, before its flight back to Tromsö, Norway and to Petsamo, Finland.
Edit: Forgot to add that the type is Høver MF-11 (MF=Marinens Flyvebatfabrikk).