Carte de visite portrait of Louisa Edwardes by French photographer Camille Silvy, c. 1861.
Source: The J. Paul Getty Museum.
Portrait of Dr. Charles Robinson of Fitchburg, Massachusetts, 1857.
Source: California Digital Library.
Daguerreotype portrait of British abolitionist and Member of Parliament George Thompson taken by photographer Richard Beard, c. 1841.
Source: Boston Public Library.