Norwegian stamp 1925. When Roald Amundsen again in 1925 attempted for the North Pole with Ellsworth in two Dornier-Wal aeroplanes , the Norwegian Post gave out a series of special stamps. these stamps were supposed to help the financing of the expedition. The stamps were given out in the values 2, 3, 5, 10, 15, 20 and 25 øre.