STC181188 Productions of the Solfaterra, plate 9 from \'Campi Phlegraei: Observations on the Volcanoes of the Two Sicilies\', by Sir William Hamilton (1730-1803), published 1776 (w/c on paper) by Fabris, Pietro (fl.1768-78); Private Collection; (add.info.: Hamilton was British ambassador to the Court of Naples (1764-1800); 1.sal-ammoniac, 3&4.sulphur, 5.cinnabar, 9.pumice, 10.calcified lava, 11.alum crystals;); The Stapleton Collection; Italian, out of copyright.