Holl, William (1807-71; English) (“the younger”) or Holl, Francis (1815-84; English), after Salomé, A. de (details unknown)
H.R.H.The Prince of Edinburgh
Engraving
Acquired by 1894
Unidentified; present location unknown

Queen Victoria’s second son Alfred (1844-1900), who spent much of his life in the navy, was named Duke of Edinburgh in 1866.

Both Holl brothers noted above produced engraved portraits of members of the British royal family during the 1860s and 1870s. However, to date, nothing corresponding to the present engraving has been traced in relevant collections such as that of the National Portrait Gallery in London, and the identity of the original painter is also unclear. Further investigations may prove more productive.

For other pre-Felton portraits of the sitter, see Victoria [Queen] Prince Alfred 1848 {1893} NGV [ET] and * Summers (Charles) Duke of Edinburgh {1873} Loc? [SC].

Refs. 

NGV 1894, p.104 (V.Buvelot Gallery, 1st bay, no.75)

William and Francis Holl were both sons of William Holl the Elder (c.1771-1838), also an engraver: see now AKL 74 (2012), pp.261-62 (entry on William Holl the Elder, also mentioning his sons); Bénézit 7, pp.222-23; and https://en.wikipedia.org/wiki/William_Holl_the_Younger. For Francis’ son Frank  (1845-88), see Holl (Frank) The Deserter {1881} NGV [DR]

Neither Bénézit nor AKL list an artist named A.de Salomé; but  Bénézit 12, p.317, does list French artists Louis Salomé (1812-63) and his son Emile (1833-64), both from Lille