The Great Turkish Bombards of the Siege of Constantinople, after being on display for four centuries, were used to battle a British fleet in 1807, in the Dardanelles Operation. The artillery hit a British ship with two cannonballs, killing 60 sailors; in total, the cannon claimed over 100 lives, prompting the British to retreat. In 1867, Sultan Abdul Aziz gave Queen Victoria the 17-ton "Dardanelles Gun," one of the cannon used at the siege of Constantinople.