One item is thought to have been carved at Chatham's dockyard

Items to be sold by auctioneers Bonhams in July already include a model of a ship figurehead thought to have been carved at the dockyard in Chatham.

And a lock of Nelson's hair presented by Emma Hamilton has been given an estimated value of �10,000 to �15,000.

Items are being put on display at the valuation day on 12 April at Bonhams' offices in the Kent seaside town.

The London sale, Nelson and the Royal Navy 1750-1815, is being held on 5 July as an event to mark the bi-centenary of the Battle of Trafalgar.

A spokesman said that a gold Trafalgar medal belonging to Admiral Sir Charles Tyler was expected to fetch �40,000 to �60,000.

Riverside fireworks

Plans were unveiled this month for celebrations in Kent to mark the 200th anniversary of the Battle of Trafalgar.

The Historic Dockyard in Chatham, where about a quarter of the ships used in Nelson's fleet to defeat the French were built, will play a central role in the events.

Lord Nelson began his naval career in Chatham, with his own flagship HMS Victory built at the dockyard.

On Tuesday, plans were unveiled for Trafalgar Night fireworks - on 21 October - on the banks of the River Medway, a maritime festival in August, and special exhibitions and visits to the area by tall ships during the summer.