The Cyberman display has a sign that suggests that the head was recovered after the events in the Doctor Who story The Invasion. The head in the case is modelled on those seen in the Revenge of the Cybermen. Although based of the same design, the Cybermen heads seen in The Invasion are different in several ways from the head shown. One of the most noticeable differences is the handles on either side of the head. In The Invasion they are smooth, but in Revenge of the Cybermen they are ribbed.