Photograph in glazed frame of Struve's base-line apparatus as used in Russia (1817-1855), taken 1870-1876. Presented by the Pulkowa Observatory, St. Petersburg, Russia. Photograph of surveying base-line apparatus, Russian, 1870-1876 1870-1876
Enlarged positive (335mmx255mm) showing Mrs Andrey Keeble with a wreath, bound for Falklands. Taken by Kenneth Saunders. Mrs Andrey Keeble with a Wreath 1983
Transparency showing the Metzger table-clock of 1564, one of the best table-clocks of the 1500s. As well as the time, it shows the time in Italian hours, the times of the sunrise and sunset and the length of the daylight period. Transparency of the Metzger Table-Clock, 1964 1964