Getallenrijen c. 1887 - 1920

"Getallenrijen" (Number Series) is an artwork by Willem Witsen, dating from c. 1887–1920. This abstract piece is an example of a “Tekenboek”, a type of sketch book that was frequently used by artists of the late 19th and early 20th centuries. The artwork is a collection of pencil sketches depicting an array of abstract lines and forms. Witsen’s “Getallenrijen” is part of the Rijksmuseum collection, a prominent museum in Amsterdam. While the exact meaning remains somewhat mysterious, the artwork offers an insight into the artist's creative process, reflecting the fascination with numbers and geometric patterns in the late 19th century.