A 1920s spirit photograph by William Hope featuring Arthur Conan Doyle and the spirit of his son.
The back of the photo states:
This is the head of my son, looking about 7 years younger than he was at death. Every precaution was taken and so far as I could observe no hand but my own ever touched the plate. The photo shows the strange screen marking under a lens which are seen in a certain proportion of Hope’s photos. They are not process printing markings for no paper pictures have appeared of such faces.
Sir Arthur Conan Doyle (1859 – 1930) – British writer and physician. He created the character Sherlock Holmes in 1887 for A Study in Scarlet, the first of four novels and fifty-six short stories about Holmes and Dr. Watson.
Doyle had a longstanding interest in mystical subjects and remained fascinated by the idea of paranormal phenomena, even though the strength of his belief in their reality waxed and waned periodically over the years.