On behalf of DNL, the Widerøe floatplane operated a service between Tromsø and Honningsvåg, near the North Cape. Photo by: Halvor Vreim / Nasjonalbiblioteket (Norway)

International rescue. The Swedish and Finnish Junkers airliners, S-AABG and K-SALG, were involved in the rescue effort following the crash of the airship Italia in 1928. Photo by: Vilhjelm Riksheim / Perspektivet Museum

At the northern terminus of the Bergen to Tromsø coastal route. DNL logo worn on tailfin. Photo by: Håkon Mathisen / Perspektivet Museum

Junkers sent this new floatplane as a rescue aircraft in support of Roald Amundsen's planned flight across the North Pole from Alaska to Spitsbergen, known today as Svalbard. It arrived in Tromsø by ship on 21 June 1923 and made some local pleasure flights. By then Amundsen had cancelled his Arctic flight but on 1 July 1923 D-260, now named Eisvogel, was still shipped from Tromsø to Spitsbergen to make some pioneering flights in the archipelago. Photo from: Perspektivet Museum

Entered service in May 1927. Seen at Tromsø while taking part in the search and rescue effort following the crash of the airship Italia on 25 May 1928. Later SE-ABG. Photo by: Vilhjelm Riksheim / Perspektivet Museum

Airline service to remote Tromsø was inaugurated on 7 July 1935. The W34 took over ten hours from Bergen. The old port in Tromsø was used. Construction of a seaplane station, Skattøra, began in 1938. Photo by: Håkon Mathisen / Perspektivet Museum

Built in Pisa in 1926 for the Italian air force. Civil registered for the rescue effort following the crash of Umberto Nobile's airship Italia. Photo by: Vilhjelm Riksheim / Perspektivet Museum