| Louis Pierson Portrait of a seated man with one arm propped on a book lying on a table 1844-1860 Daguerreotype, 1/4 plate, hand-tinted National Museums Scotland History of Science, Howarth-Loomes Collection, Museum Reference: IL.2003.44.2.292 LL/68246 Cased with a trade card, by Pierre-Louis Pierson, Paris.
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