Supplement to the ilustrated London News, May 24, 1862. London. Guide to the international exhibition. 1862. Drawn & engraved by John Dower, Fellow of the Royal Geographical Society, 108, fleet Street, Eastern Central. [Suplemento ilustrado del London News, 24 de mayo, 1862. Londres. Guía para la exhibición internacional. 1862. Dibujado y grabado por John Dower, socio de la Real Sociedad Geográfica, 108, fleet Street, Centro-este.]