Members of the 1st Battalion on the march during the Boer War of 1899-1902.
The 1st Battalion wore a green fleur de lys on the side of their tropical helmets, and one (although a little blurred) can be seen on the closest man.
As well as their Lee-Enfield rifles, some soldiers carry rolled up signalling flags and stretchers.
Several details such as outlines in the photo appear to have been enhanced.