RT Journal Article T1 Photographic plates and spirit fakes: remembering Harry Price’s investigation of William Hope’s spirit photography at its centenary A1 Efram Sera-Shriar YR 2022 VO IS Spring 2022 K1 Harry Price K1 mediums and psychics K1 mediumship K1 psychical research K1 scientific testimony K1 spirit photography K1 spiritualism K1 William Hope AB During the opening decades of the twentieth century, William Hope was a well-respected medium amongst the spiritualist community in Britain, with positive endorsements from major scientific figures such as the chemist William Crookes and the author and physician Arthur Conan Doyle. Hope was often seen as one of the few mediums to be able to produce authentic spirit photographs. However, all that changed in late February 1922 when the magician-turned-psychical researcher Harry Price claimed to have caught Hope cheating during a sitting, by discovering that he was swapping blank photographic plates for ones with supposed spirit ‘extras’ already on them. Hope was publicly exposed as a fraud, and what ensued was a major debate between believers and sceptics over the legitimacy of the medium’s alleged spirit photography. The Hope-Price affair became a media sensation in the months that ensued, with a series of articles about the investigation and its aftermath appearing in the major spiritualist magazine Light. While much has been written about the Hope-Price affair as a key example of fake mediumship, most of these accounts tend to prioritise the sceptic’s perspective, with little attention paid to spiritualist responses. This paper will provide a more balanced narrative, focusing on one of the main criticisms of Hope’s defenders at the time: the credibility of Price’s testimony. Because Price actively misled Hope and his associates in a bid to catch the medium cheating, his trustworthiness as an objective observer and investigator of extraordinary phenomena was questioned. Key to this analysis is the essential role material evidence played in this case, with particular emphasis on the photographic technologies and processes used. PB The Science Museum Group SN 2054-5770 LA eng DO 10.15180/221707 UL https://journal.sciencemuseum.ac.uk/article/photographic-plates-and-spirit-fakes-remembering-harry-prices-investigation-of-william-hopes-spirit-photography-at-its-centenary/ WT Science Museum Group Journal OL 30