Hi.

With this additional info about marking, you got one of those krags made for the Germans by kongsberg in 43-44.
Germans introduced simular system of marking as on their mausers etc, with letter for eacy 1000. Na, Nb, Nc. They reached the Nc. You got one of those 1000 made under the Nb serial. Approx 2500 were made. They were made of new, scrapped og spare parts, a bit rougher in the finish then the earlier made krags.
The "dragon" is a lion, "Riksløven".