| George Henry Fox Scrofuloderma (top left), Syphiloderma (top right), Lupus Vulgaris (bottom left), Epithelioma (bottom right) 1905 Book illustration Internet Archive LL/55560 George Henry Fox, 1905, Photographic Atlas of the Diseases of the Skin in Four Volumes, (Philadelphia and London: J.B. Lippincott Company), plate LXXV
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