30 x 21cm, original vintage xerox (as issued)  with an extensive  Hansen design for an happening which included the NYC Audio Visual Group and the Octopus Allstars as well as the Robot Theatre of Megalopolis. VG+.

30 x 21cm, original vintage xerox with a Hansen design for an event by Professor Don Zanfagna who was an early proponent of earth and environmental art with a smidgeon of mysticism. VG+.

58 x 42cm, black on brown paper. Announcement poster for one of an on-going series of performances by the Gelsenkirchen Free International University (FIU) mostly organised by Johannes Stüttgens and Jürgen Kramer and often including the participation of Beuys. Most of the events promoted Green Party ideas and the Gelsenkirchen FIU eventually helped form the Green Party in the region. One small closed tear bottom of the poster else VG+. Scarce.

30 x 21cm, 4pp (single folded sheet of card) printed in green, purple and black with the outside of the card being a single illustration of the Witkar proposal. Internally texts in DUtch explaining the title concept that "WITKAR GIVES PEDESTRIAN WHEELS". The Witkar (white car) project was one of the first technology-based car-sharing projects in the world after Dutch social inventor and politician luud schimmelpennink, an industrial designer and at the time Amsterdam city councillor proposed it as a means of helping solve the city's growning car problem. The project was opened on 21 march 1974 and while having some limited success was never expanded beyond the original experimental reach.

While never an official Provo project, the experiment was supported by them and it is interesting that this brochure has three Provo "apple" symbols incorporated into the design. Very scarce. VG+.