Hello,I have a similar picture. Have a close look at the collar dogs (collar badges)which may identify the regiment.The DCLI (duke of cornwall light inf.) were there circa 1884-89after first training in Bodminster.Good Luck - SgtVic
This would be better on the Armed Forces board for uniform help...but I can tell you the black backing was popular in the 1890s, as well as the thing he is leaning on.Cheers,China