This spark plug wrench was among the tools Charles Lindbergh and his wife, Anne Morrow Lindbergh, took on their 1933 survey flights across the North and South Atlantic. They brought many other tools as well (and even purchased some along the way) since they had to conduct several maintenance tasks everyday to keep their airplane running properly.In December 1933, during the latter part of their trip, the Lindberghs made several unsuccessful takeoff attempts for their flight from Africa to South America as calm winds and seas would not allow their heavily loaded plane to rise. This wrench was among the tools and supplies they removed and shipped home from Bathurst, Gambia so they could lighten their load and continue.