Civil hunting kammerlader.
This is another civilian 4 linjer kammerlader (breachloader) produced at Kongsberg Våpenfabrikk. This stock is slightly different from the other civilien rifle, and that makes sense, since I have never seen two identical hunting kammerlader rifles from Kongsberg. The only marking i can find is the serialnumber 71 and the approval mark. There are not very much literature written on these rifles.