It was owned by Arthur Young's 'Red Warrior' coaches of Hurst Street, Birmingham. In the late 40's they moved to Earlswood.
The Maudslay SF40 (also called the 'Magna') was produced in the mid to late 30's and the registration BOC 610 is also Birmingham c 1934-5.
Was that the same address as Worthington's Motor Tours in Hurst Street later? (40's to 80's?)
Paul33, Have you forgotten you started a thread about Red Warrior coachs/club?, go to search at the top of the page and type Red Warrior coachs/ club.