'Brotvermessung' [The Measuring of the Bread] documents a happening that took place on 15 March 1969 and involved the participation of a random public, which assisted with the measuring of the circumference of the Cologne Opera with 40 French loaves - which turned out to be equivalent with 1,164.5 loaves of 50 cm and weighing 1.5 kilogram. (Berta Sichel)