National Geographic : 1973 Sep
SEE THE GIANT STONE HEAD of the lost Olmec civilization . . . two globes crafted by America's first globemaker... the tattered U. S.flag that accompanied Peary on his Polar expedition ... the balloon gondola that held a manned-flight altitude record for 21 years . .. the largest unmounted globe in the world, and other fascinating exhibits of National Geographic researches and explorations. Explorers Hall is open every day but Christmas at the NATIONAL GEOGRAPHIC SOCIETY, 17th & M Streets N.W., Washington, D. C.