This bilge pump was among the tools Charles Lindbergh and his wife, Anne Morrow Lindbergh, took with them as they flew their Lockheed Sirius aircraft to the Orient in 1931 and across the North and South Atlantic in 1933. Originally an open-cockpit landplane, the Lindberghs' Sirius was converted into a floatplane with a sliding canopy and pontoons for their two overwater journeys. Charles used this bilge pump almost daily to remove water that would seep into the pontoons and add weight or affect the airplane's balance.