Date based on a lithograph of Lind copyrighted in 1850 by D'avignon from a Brady daguerreotype.
Which photographer with Brady's Daguerreian Study is not certain and it might have been Poly Von Schneidau or Luther Boswell.
John Carl Frederick Polycarpus Von Schneidau (Daguerreotype in America by Beaumont Newhall. New York: Dover, 1976, p. 59, and in America of the Fifties: Letters of Fredrika Bremer. New York: American-Scandinavian Foundation, 1924, p. 210) or Luther Boswell (The Chrysler Museum acquired a daguerreotype of Jenny Lind along with a note from Mrs. Luther Boswell that described Lind coming to Brady's studio where operator Luther Boswell made the exposure.) [Wikipedia: December 2010]
