Diorama of geophysical prospecting methods used in archaeology in the 1970s, built in 1977 by Mr Ley Kenyon. It is three feet squared and depicts the use of a prototype Martin-Clark resistivity meter to detect Roman ruins at the Stenness circle and henge at Orkney, Scotland during the 1970s. The diorama includes five miniature figures of people, one of which is Antony Clark, the co-inventor of the resistivity meter and head of the excavation. It features interpretative labels on slanting panels on all sides describing the history and principles of using resistivity measurements to detect buried ruins from the surface. Geophysical prospecting methods used in archaeology, late 20th century. 1977