LN - Norwegian, so probably a Honningstad C5 Polar - there's another photo of LN-DBW at http://1000aircraftphotos.com/Contributions/Coates/3273.jpg - the tail looks similar, but the floatplane has a ventral vertical stabiliser - maybe to help counter the effect of the floats?
Got it - the...
I've just come to this board have read this entire thread - fascinating!! :)
Can I suggest some rules?
1/ The a/c must have seen active service, not been immediately relegated to training/target/transport duties
2/ the a/c must not have had a development that went on to be successful (eg...