Weems used these tools—a Bureau of Standards bubble sextant, a second-setting watch, and star altitude curves—to tutor Charles Lindbergh in the art of celestial navigation at night.
Caption:
Charles Lindbergh used this celestial navigation equipment while under instruction by P. V. H. Weems in May 1928.
Type: Photograph
Credit: National Museum of American History, Smithsonian Institution.
Origin: National Museum of American History, Smithsonian Institution.
