Two books, both hardcovers with dust jackets: a first American edition of The Hitchhiker’s Guide to the Galaxy, published in 1980 by Harmony Books, signed on the title page in blue ballpoint; and a first edition of Dirk Gently’s Holistic Detective Agency, published in 1987 by Simon and Schuster, signed and inscribed on the first free end page in blue ballpoint. In overall fine condition. Pre-certified PSA/DNA.
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