BURROUGHS, EDGAR RICE Tarzan the invincible. Tarzana, CA: Edgar Rice Burroughs, Inc., 1931. First edition.Blue cloth boards (20 cm. tall), lettered in reddish-orange. With quality facsimile jacket. Ownership inscription to front endpaper. Illustrated with frontispiece by Studley O. Burroughs. With single leaf of ads at rear.