In Ancona harbor, the battle-damaged Italian ironclad "Affondatore" sinks at anchor during a storm.

A heavy storm struck the harbor at Ancona, Italy where Italian naval units were sheltering after the hard fought battle with an Austrian fleet off the island of Lissa on July 20, 1866.  The British-built, 4000 ton ironclad Affondatore had been hit with a score of shells at Lissa and either this damage or her low freeboard caused her to ship water and slowly sink on this day.  She was later refloated and continued in the Italian naval service.  (By John Osborne)