
The Blue Envelope Mystery
- Mwaka: 1916
- Nchi: United States of America
- Aina: Drama
- Studio: Vitagraph Company of America
- Neno kuu:
- Mkurugenzi: Wilfrid North
- Tuma: Lillian Walker, John Drew Bennett, Bob Hay, Charles Kent, Josephine Earle, Harry Northrup