The Huld Manuscript
Also known as the ‘Dark Manuscript’, this book of Icelandic magical staves, sigils and charms was written and collected in 1847 by Geir Vigfússyni á Akureyri from three other manuscripts.
Of the three manuscripts used in compiling the Huld manuscript we know that one of them was written in Seltjarnarnesi of 1810. The other was by Halldórs S. Stefánssonar, a book called “Galdrastafir og náttúra þeirra”, and it was this book that contained the magical staves but none of the descriptions.
The full manuscript can be found here