The Northumberland Bestiary, a book from the 13th century, sold for $4.1 million in 1990! What's the rarest book that you own? . . . . #LibrariesStrong #ilovesjcpls #staugustine #stjohnscounty #stjohns #pontevedrabeach #pontevedra #staugustinefl #onlinelibrary #librariesofinstagram