According to Maas, who believes this one of the finest photographs taken of Ruskin, Downey made it during the same session at Rossetti's house at 16 Cheyne Walk on June 29, 1863 in which he made photographs of Rossetti and William Bell Scott. The chair in which Ruskin sat Rossetti used while painting.
Ruskin, John. Works, "The Library Edition." eds. E. T. Cook and Alexander Wedderburn. 39 vols. London: George Allen, 1903-1912.
John Ruskin and His Circle. Exhibition catalogue: London: Maas Gallery, June 1991. 24.