Crater of Aetna volcano.
Crater in the island of Volcano.
MAYER, Luigi. Views in the Ottoman Dominions, in Europe in Asia, and some of the Mediterranean Islands, from the Original Drawings taken for Sir Robert Ainslie by Luigi Mayer, F.A.S. with descriptions historical and illustrative, London, P. Bowyee, 1810.
The Gennadius Library - The American School of Classical Studies at Athens