The business was located at 6 High Street, Brompton and went through 3 phases:
1896-1903 James Charlesworth, Photographer
1903-1908 Charlesworth & Morehen
1908-1928 Morehen & Co.
It is possible that your photo could be as late as c.1909 as I understand sometimes the cards the photographers used to mount the photos on could take many months to use up, so it is possible Morehen & Co were using up old stock of the Charlesworth & Morehen cards in the early months.