The AT (Arbeidstjeneste) were Norway's equivalent to the German RAD.
Here is a pin for the AT administration.
In 1944, the NS instituted a heroic deed or lifesaving medal (Medaljen for Redningsdad). Only 25 of these were ever made and 18 were actually issued between, 1944 and 45. All of them were made by J Tostrup of Oslo. Note that the maker mark is also preceded by the Norwegian silver hallmark of 830S. Here is one of the 25.