David Octavius Hill, Robert Adamson Handyside Ritchie and Wm. Henning (Handyside Ritchie y Wm. Henning) 1843 / Copia póstuma, 1912
David Octavius Hill, Robert Adamson Dr. Munro (Dr. Alexander Monro [1773-1859], Professor of Anatomy in Edinburgh... 1844 (29 de agosto) / Copia póstuma, 1905
David Octavius Hill, Robert Adamson The Marquis of Northampton (El marqués de Northampton) 1844 (28 de diciembre) / Copia póstuma, 1912
David Octavius Hill, Robert Adamson Sir Francis Grant, P.R.A. (President of the Royal Academy) (Sir Francis Grant, P.R.A. ... 1845 (septiembre) / Copia póstuma, 1912
David Octavius Hill, Robert Adamson Mr. Rintoul, Editor “The Spectator” (Mr. Rintoul, editor de «The Spectator») 1845 (ca.) / Copia póstuma, 1912
Gary Hill Full Circle (Formerly Ring Modulation) (Círculo completo [antiguamente Modulación anular]) 1978