Before revision: Lanby buoy (on left) that replaced Lightship Columbia at the Columbia River Maritime Museum in Oregon LANBY, a contraction of Large Automatic Navigation BuoY, were a type of floating navigational aid designed to replace lightships.
After revision: The LANBY (on left) that replaced lightship Columbia, at the Columbia River Maritime Museum in Oregon LANBY, a contraction of Large Automatic Navigation BuoY, were a type of floating navigational aid designed to replace lightships.