Nikolai Astrup’s own compiled “catalogue” from 1927 is a vital resource. This overview, which is often referred to as “Astrup’s list”, contains a summing up of more than 101 paintings, and includes brief descriptions and information about ownership. The overview was put together by the artist at the request of Magnhild Bukdahl Ødvin, who intended to write a biography and arrange an exhibition of his work (neither was ever realised). The list exists in two copies: as a rough draft and as an attachment in a letter. The numerical sequence is marked ”Astrup”.