Brand: Den Norske Blyantfabrikk
Made in: Norway
From what I have learned there is only one pencil factory in Norway. The name changed from Den Norske Blyantfabrikk to Oslo Blyantfabrikk when it relocated from the outskirts of Oslo to the center of Oslo.
Based in Oslo, Norway and in business from 1932–1972. Den Norske Blyantfabrikk is also known as the Norwegian National Pencil Factory A/S and Oslo Blyantfabrikk.