Black and white full-length studio portrait of Sir Charles Wentworth Dilke. Pencil inscription on verso, 'Dilke'. Printed inscription on verso, 'Gundall, Downes & Co. 128 New Bond Street. International Exhibition of 1862. Guarantor's Album'. Sir Charles Wentworth Dilke (1810-1869) was an art patron, horticulturalist and Whig politician. He was a founder of the Great Exhibition. He was a member of the RHS council.. Sir Charles Wentworth Dilke (1810-1869) was an art patron, horticulturalist and Whig politician. He was a founder of the Great Exhibition. He was a member of the RHS council.