Connan Doyle's Photos Are Real

A strong primo faci case has been built up. The cry of fake is sure to be raised, and will make some impression upon those who have not had the opportunity of knowing the people concerned or the place. On the photographic side, every objection has been considered and adequately met. Both are false, or both are true. All the circumstances point to the latter alternative. One needs overpowering evidence before one can say that there is no conceivable loop for error. So he's very confident that the pictures are real, but not so confident as to say there's no possibility of him being wrong.