First Edition. F. E. Warren dustjacket art. This copy inscribed and signed by Barretto at front endpaper to Isabel [Mary] Paterson, founder of the Libertarian Party and author of The God of the Machine. New York set novel of aristocratic twins who cast aside their heritage and join the "new social order". Very Good but for split at binding at title page, in modestly soiled and edge chipped dustjacket.