coins feature on the obverse (front of the coin), a portrait of Queen Elizabeth II facing right and the lettering "ELIZABETH II GIBRALTAR" 2004, engraved by Raphael David Maklouf. On the coin's reverse, a cannon set for a downhill target and the lettering "1704 – 2004 THE GREAT SIEGE, 1779–1783 and ONE POUND" and was engraved by Philip Nathan. Today The Great Siege Tunnels can today be accessed as part of the Upper Rock Nature Reserve; the exhibition includes dioramas and displays of the battle. After the siege the original cannon were replaced with more modern 64-pounder rifled muzzle loaders on iron carriages, some of which can still be seen in the tunnels. The tunnels have been hugely expanded and new tunnels built to connect to the first galleries. By 1790 around of tunnels had been constructed inside The Rock. They were again expanded during the Second World War. See also Capture of Gibraltar Siege of Gibraltar (1727) Ceremony of the Keys (Gibraltar) References Notes Footnotes Bibliography External links 1782 in Gibraltar 1782 in Spain 18th century in France Amphibious operations Gibraltar Gibraltar Gibraltar Gibraltar Gibraltar Gibraltar History of Gibraltar History of the Royal Marines Gibraltar Gibraltar Gibraltar Sieges of Gibraltar Gibraltar Gibraltar Sieges of the American Revolutionary War Sieges of the American Revolutionary War involving France