Consider Fahrbare schwarze Sesselgruppe (Driveable Black Group of Chairs)(1971), a pair of black and chrome forms on casters joined by drooping hoses; and Fingerbank (1979), a collection of
pendulous black tubes encased in glass — both of which featured prominently in «Ungestalt,» a group show at the Kunsthalle Basel last summer, alongside work by a multi-generational group of artists, from Marcel Duchamp to Adrián Villar Rojas.