1969 Zippo Slim USS Sierra AD-18 Lighter Dixie Class Destroyer Navy Veteran Vtg1969 Zippo Slim USS Sierra AD 18 Lighter Dixie Class Destroyer Navy Veteran Vtg USS Sierra (AD 18) was a Dixie class destroyer tender built just before the start of World War II for the U. S. Navy. Her task was to service destroyers in, or near, battle areas and to keep them fit for duty. She was the second U. S. Navy ship to bear the name. selling off a lifetime collection of zippos check out our other listings! selling as pictured. more than welcome