San Francisco/ Chicago/ New York: Rand McNally & Company, [circa 1930]. Map. 29" x 22" folding map in housed in wraps. Cover measures 4" x 6.5" when closed. A few very small holes at fold vertices, else map is crisp and unworn. Very good. Item #46293
Colorful map with air trails plotted in red. Population statistics and other information printed on verso.