The work Heureka was commissioned for the Swiss National Exhibition of 1964, held in Lausanne. The artist was asked to create a ‘signal tower’ and received 70,000 Swiss francs as payment as well as to cover the immense material costs; these conditions were contractually agreed in 1963. Tinguely began work on the project in the same year, at which time he was living with Niki de Saint-Phalle in the nearby town of Lutry. From the 30th April 1964, Heureka stood in Lausanne on the so-called Path of Switzerland, a segment of the national exhibition. The final sculpture appears as a metal giant, 4 metres high on a concrete base. It generates multi-part movements, which in turn create noises, all powered by electric motors. Tinguely can count on hands-on support throughout the construction process, as some of the pictures also show. Nevertheless, it takes six months of work before the work is completed. The story of Heureka doesn’t stop there: art collector Walter Bechtler buys the work at the end of the national exhibition and from then on campaigns for it to be given a public location in the city of Zurich. In 1967, these efforts bear fruit in the (initially ‘provisional’) installation of the work at the Zürichhorn. Since the acquisition of the work, the city has been taking care of it through the workshop operations of its own department Entsorgung + Recycling Zürich (ERZ). From its location at Zürichhorn, the sculpture would only be moved again for maintenance work as well as for two international exhibitions (to Melbourne in 1988 and to Amsterdam in 2011). You can find some photographic documentation of these stages of the work’s history on display here also.