Her earliest surviving pictures date from the late 50s and reveal her exploration of contemporary movements such as Informel and Abstract Expressionism. It is interesting that she appeared to be less interested than many of her male colleagues in individual expression, applying the paint with a palette knife to create a greater distance between herself and the painting’s surface.
During the 60s, Posenenske increasingly minimised her use of colour and shapes, indicating landscapes, for example, simply by horizontal lines which denoted the sky and earth. As her interest in Constructivism grew, she began painting a series of simple black ink circles, reminiscent of musical notes. It was during this period that she began her sculptural work and it is greatly to the credit of this exhibition, curated by Konstantin Adamopoulos and Burkhard Brun (the artist’s husband who administers her estate), that it is possible to understand that leap.
Posenenske applied primary coloured sticky strips to paper, creasing them and then applying them in layers until shapes were built up - as in CMP 65 (1965) for example. She progressed to using sheet metal sprayed with monochrome paint which she then folded into sculptural shapes, and combined this with corrugated cardboard to produce the series ‘Vierkantrohre’ (Square Tubes, 1967) which look like ventilation shafts. She conceived these early sculptures as modules that could be adapted according to available space, each one assembled into a shape ultimately appropriate to the context it found itself in. Anonymity was important to Posenenske. Shifting between Minimal and Conceptual art, she viewed her function as that of a supplier who made material available, but who did not have to be present at the moment of artistic realisation - i.e. at the installation of the pieces in the exhibition space. Gradually Posenenske became increasingly indifferent as to whether or not her creations could be identified as art.
She stopped working as an artist in 1968, no longer believing that art could influence social interaction or draw attention to social inequalities. Instead, she turned her attention to sociology until her death in 1985, becoming a specialist in employment and industrial working processes. She refused to visit any exhibitions during this period, or show her work. There have been a few posthumous exhibitions of her ‘Square Tubes’, mainly in galleries and public spaces. Only now, displayed in the context of her entire artistic output, does her significance to the history of Modernity become apparent.