Norwalk, CT, Easton Press, 1988. Limited Edition. Hardback. A fine copy. Signed by Asimov, as issued. The first prequel to the Foundation trilogy (the other prequel is 1993 Forward the Foundation). The Easton Press note this as a first edition, but I think Doubleday's own issue was a couple of weeks earlier. [10581, Hyraxia Books].