Gall y ffeil hon gael ei defnyddio gan nifer o brosiectau eraill.
Portrait of British writer Wilkie Collins (1824-1889). Picture by Elliott and Fry of 55 Baker Street, taken possibly in 1871. Source: U.S. Library of Congress, who state "No known restrictions on publication." http://hdl.loc.gov/loc.pnp/cph.3c34810
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