This was Eduardo Paolozzi's first sculpture that took a ready-made machine as its subject, in this case, the head of a crash test dummy. It was based on an article in the National Geographic Magazine of 1950, which featured a segmented head used to measure irradiation on the human skull. It was also the first head Paolozzi cut into sections, which were then reassembled. Such deconstruction and reconstruction of forms and shapes became central to Paolozzi's work. Although the bronze is inscribed with the date '1959', this may be the casting date, and it could have been conceived as early as 1950.