He worked mainly in his hometown and Skien .
From 1890 - 1918 , he was an instructor in building construction at Christiania Technical School ( Christiania tekniske skole ) , while working as an independent architect in Christiania .
instructor worked mainly in instructor 's hometown and Skien .
From 1890 - 1918 , he was an instructor in building construction at Christiania Technical School ( Christiania tekniske skole ) , while working as an independent architect in Christiania .