Early printing. Octavo (19cm); red vertically-ribbed cloth, with titling and decorative elements stamped in gilt and dark brown on spine and front cover; top edge gilt; xiii,14-446,pp; with frontispiece and 18 plates illustrated plates by Frederic Remington. Some trivial wear to spine ends, small, faint stain to rear cover, else a fresh, Near Fine copy. Provenance: From the collection of Spectrum of Fantasy author George Locke. Attractive copy of this lost race adventure novel about the discovery of an Aztec remnant in Mexico. Locke (A Spectrum of Fantasy, Vol.1), p.122; Bleiler (1978 ed.), p.109.