Antiquarian Bookstore The Antiquarian Bookstore, New Hampshire's largest antiquarian book store, features collections, out-of-print books, rare books, antiquarian books, magazines comics and art. We've been in business in Portsmouth, NH since 1973. We deal mainly in collections, so we have assembled a wide variety of offerings. Wonderful Wholesale Materials and Antiquities Available immediately without auction. Prices shown are the Lowest Possible. We do offer some Featured Items, including Art and Antiques, and invite you to browse We have an eclectic assortment of more than two hundred fifty thousand (250,000) books, including about one hundred thousand (100,000) softcover in our store.