Three display cases offer new interpretative perspectives through their associative compilation of materials and objects. The first display case contains artefacts related to the 'front garden exhibition'. These include a model of the Opel Blitz transporter, which refers to its transport to the Parnass Gallery; a Minox camera, which recalls photographs taken by the gallery owner, Rolf Jährling, who documented the works presented in the garden; and further photos, which refer to the resulting exhibition at the Parnass Gallery; the sale of a work of art to the Wuppertal collector couple, Gustav Adolf and Stella Baum; and its removal. The enlarged film strip created by Rolf Jährling during the presentation is displayed as a wall piece behind the display cases. The second display case features Sigmar Polke's 'Vitrinenstück' (Display Case Piece) from 1966, which is visible in a photograph in the current exhibition. A catalogue of Documenta 1, a matchbox from the ZERO Foundation, two saucers (one containing green peas) and a piece of canvas in a dotted paper bag encourage viewers to consider the construction of truth, context and artistic authority — entirely in the spirit of Polke's ironic critique. All the display cases symbolise the dynamics that contribute to the transformation of artistic facts into art history, thereby demonstrating the mechanisms of value and meaning creation in art. The third display case shows the end product of this development. Four catalogue raisonné volumes of the artist's works are presented in a succinct manner; however, they were published at different times.