The Great Office Mystery
- Sena: 1928
- Pajjiż: United States of America
- Ġeneru: Crime, Drama
- Studio: British Filmcraft Productions
- Kelma ewlenija: sexton blake
- Direttur: George A. Cooper
- Kast: Langhorn Burton, Mickey Brantford, Fred Raynham, Gabrielle Morton, Ronnie Curtis
