OSLO. 5,5% First Mortgage Registered Debenture £100. green, black. #11500. No 4579. Fold. Founded 1873 as a pulp mill beside the waterfall Damfossen in the city of Skien (Vestfold og Telemark county). The business grew and operated two paper machines that produced 240,000 tons of newsprint and book paper. It closed down in 2006. A Waterlow print.