Hilma af Klint.  Group IX/SUW, The Swan, №17 (Grupp IX/SUW, Svanen, nr 17) , 1915, from The SUW/UW Series (Serie SUW/UW). Oil on canvas, 150.5 x 151 cm. The Hilma af Klint Foundation, Stockholm. Photo: Albin Dahlström, the Moderna Museet, Stockholm.

Hilma af Klint. Group IX/SUW, The Swan, №17 (Grupp IX/SUW, Svanen, nr 17), 1915, from The SUW/UW Series (Serie SUW/UW). Oil on canvas, 150.5 x 151 cm. The Hilma af Klint Foundation, Stockholm. Photo: Albin Dahlström, the Moderna Museet, Stockholm.