Medals by Subject, Science, Royal Scottish Society of Arts, a group of three medals, awarded to John (1) and Peter (2) Stevenson, philosophical instrument makers of Lothian Street, Edinburgh: obv. helmeted Athena to r., 1855, "For his instrument for finding the density of Floating Bodies ... Silver Medal - value seven sovereigns"; 1870, "For his description of an Atometro-Hygrometer ... value three sovereigns"; 1884, "For his Meteorological Apparatus ... A Reid and Auld Prize – value 10 Sovs", 48.5mm, the last gilt, each side-pierced and swivel-mounted in a brass frame, medals otherwise extremely fine (3)
(80-120 GBP)