||Original, linen backed, Authorized Map of the Second BYRD Antarctic Expedition.
Past polar expeditions has been swallowed up by a silence which was never broken until they returned ---- if they did return. But on the Byrd Expedition there is being attempted the most notable feat in radio history -- a two -way broadcast of the Expedition as it is being lived -- from the very lips of the men themselves. Hailed by leading authorities as an important contribution to radio science, this series is made possible by General foods, makes of Grape-Nuts.
Horizontal format, linen backed; excellent conditoin.