listing of Jens Amundsen's ships

my great-grandfather was in the Norwegian Merchant Marine in the last 1800's. One of the signatures on his Norwegian passport is "Amundsen". I believe that it is the signature of Jens Amundsen, who owned and captained ships during that time period. I have been unsucessful in trying to find a listing of the ships that Jens Amundsen owned or captained in the 1890's. The info on the passport appears to be "Meoss" and the date of October 30, 1896. Thanks for any help you might be able to give.