anticuario

adj. antiquarian, of or relating to antiquities

n. antique shop; antiquary

= antiquarian, antiquary, antiquarian librarian.
Ex: The second group of people to interest themselves in popular reading material were the later seventeenth century antiquarians.
Ex: Local history collections are being built up in many countries, whether as deliberate policy, based on collections of local antiquaries, or developed casually over many years = En muchos países se están creando colecciones de historia local, ya sea como fruto de una política delibrada, a partir de de colecciones de anticuarios de la localidad, o creadas de un modo casual durante el transcurso de muchos años.
Ex: This paper traces the history and growth of Bloomsbury Book Auctions, antiquarian booksellers and auctioneers, and relates some of its experiences in valuing and auctioning rare manuscripts and books.
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* especialidad del anticuario = antiquarianism.