First edition thus. 6 1/4" x 4" printed stiff wrappers, contains a full-color map, that opens to 30" x 30". Map folds into printed card covers. On the back cover is an advertisement for Rand-McNally Indexed Maps with Air Trails, with two military officers briefing a pilot in his bi-wing plane. An early promotion for the value of maps even while flying an airplane. Very good.
Inventory Number: 44088