It was also one of the seven founding member of the International Air Traffic Association, the predecessor of the International Air Transport Association.
He was CEO of Norway's first airline company, Det norske Luftfartsrederi, in 1918.
Det Norske Veritas | Det Norske Teatret | Norske Skog | La det swinge | Den norske Creditbank | Så ska det låta | Painted by Eilif Peterssen in 1892: An evening at the Norwegian Society (''En aften i Det norske Selskab''). The man with the raised glass in the foreground is Johan Herman Wessel | Norske Talenter | Norske Løve Fortress | Norske Løve | Det vackraste | Det største spillet | Det Norske Veritas (DNV, Norway) | Det Norske Luftfartrederi | Det gör ont en stund på natten men inget på dan | Det gör ont | Det Classenske Fideicommis | Den norske Bank |