The only First World War anti-aircraft gun to be fully restored to fire again will be unveiled at Dover Castle this weekend.

The gun has been restored by English Heritage and will take pride of place at the 1915 - Dover at War event on Saturday and Sunday, August 1-2.

A team of trained volunteers will take part in a special re-enactment and fire the gun – without real shells – one hundred years after they were originally used.

Dover was officially designated as a Fortress during the First World War, containing a garrison and training camps for more than 10,000 men, and the £490,000 project has recruited local volunteers to help tell the story of this important chapter in the town’s history.

An identical gun at Langdon Battery hit a Zeppelin and repelled a German raid which shows how vital it was to Dover’s defences.

The gun will be fired at 1pm both days and will continue every week at the same time.

It has been made possible thanks to a grant of £272,600 from the Heritage Lottery Fund (HLF) and aided by support from The Friends of Dover Castle.

The event runs 10am-5pm. There will be Edwardian music, cavalry and falconry displays, and a replica biplane.

Adult tickets are £18, children are £10.80.