[Michal]

I have found only information for 1942 - 1943, where all of currency of occupated states were underrated to Reichsmark.

Kroner - Reichsmark 0,52:1
British Pound - Reichsmark 9,30:1

So, estimated conversion between British Pound and Danish Kroner should be during 1942-1943 approximately 17,88 Danish Crowns for 1 Pound.