An unidentified sitter

[Stylistically this portrait ouught to appear in Volume 1 of the Silvy daybooks but it's not there. I suspect it might be one of the portraits that were lost when all the sittings numbered 100 to 300 were removed from the daybook in the early 20th century in order to add all the theatrical portraits taken by Silvy in the spring of 1860 to the Guy Little collection.]

[From an album of Grenadier Guards dated 1868. The legend on the album cover, embossed in gold, reads '3rd Batⁿ Grenadier Guards / Dublin / 1868.']