Hello everyone - I would really appreciate your opinions about this inscription. In Jan. 1974 my brother sent a letter to Groucho Marx about his intrest in Sherlock Holmes. He received back this signed photo by Grouucho "Holmes". I believe the Groucho autograph to be authentic. I understand that he would sign a stack of photos to be inscribed later as needed. You will notice the Groucho is darker than the inscription. Do you think the inscription is added by his secretary or maybe by Groucho himself? A 2nd question is his return address. It looks like it might be by Groucho but I would assume that a secretary did that also. Any thoughts are really appreciated. Thanks, Mike