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On the sign:
Jacques-Charles BRUNET 1780 - 1867 Libraire - Bibliographe A PUBLIE DANS CETTE MAISON SON CELEBRE Manuel du libraire et de lamateur de livres
Jacques Charles Brunet (1780-1867) was a well-known French bibliographer. In his well-known book published in this house, he presents his method for cataloging books, a method called "the French System"
The place where The National Union of Ancient and Modern Booksellers (SLAM) is located today was photographed on the same day Click for a larger image
Translation of the text on the sign: Jacques-Charles BRUNET 1780 - 1867 Bookseller - Bibliographer PUBLISHED IN THIS HOUSE ITS FAMOUS Booksellers and Book Lovers Handbook