British Image of City of London Yeomanry (Rough Riders) Postcard
I think this chap is to the City of London Yeomanry (Rough Riders), just based on the shape of his Cap badge, but I might be wrong.
A nice image, showing bandolier and spurs.
Good colour to front, and clean to back. Maker marked to "W. A. Brown & Son, Photographers, 148 Camberwell Rd, London, SE, & 60 Oldham St, Manchester.
Postcard is not postally used.