The two-part work Spaltkasten was created in 1974 by Basel artist Jean Pfaff. The simple aesthetic shows his interest in the ideas of Minimal Art. A central element of the depiction is the colour spectrum, which refers to colour theories. On two canvases of equal size, the colour spectrum is split into two thin sections in the middle. The work reflects Pfaff’s interest in how we perceive colours.

As Walter Zellweger appreciates ‘real, honest materials’, the master florist was immediately drawn to the raw canvas of the painting: ‘The weft and warp of the canvas are visible and testify to the craftsmanship.’ He summarises the spectral colours of the painting in the colour white, which is the sum of all the colours. The floral interpretation captivates with a steel construction that opens up new and surprising perspectives in dialogue with Pfaff’s painting.