The Great Office Mystery
- बर्ष: 1928
- देश: United States of America
- विधा: Crime, Drama
- स्टुडियो: British Filmcraft Productions
- कीवर्ड: sexton blake
- निर्देशक: George A. Cooper
- जात: Langhorn Burton, Mickey Brantford, Fred Raynham, Gabrielle Morton, Ronnie Curtis
