The Blue Envelope Mystery
- יאָר: 1916
- לאַנד: United States of America
- זשאַנראַז: Drama
- סטודיאָ: Vitagraph Company of America
- קיווערד:
- דירעקטאר: Wilfrid North
- געשטאַלט: Lillian Walker, John Drew Bennett, Bob Hay, Charles Kent, Josephine Earle, Harry Northrup
