The Library’s daguerreotype collection consists of more than 725 photographs dating from 1839 to 1864. Portrait daguerreotypes produced by the Mathew Brady studio make up the major portion of the collection. The collection also includes early architectural views by John Plumbe, several Philadelphia street scenes, early portraits by pioneering daguerreotypist Robert Cornelius, studio portraits by black photographers James P. Ball and Francis Grice, and copies of painted portraits.