This article examines the cameraless negatives revealing the imprints of four fingers obtained in Turin in February 1907 during the second of two séances with renowned medium Eusapia Palladino organized by physiologists Alberto Aggazzotti, Carlo Foà and Amedeo Hertlizka. By looking at the material and performative components of the séance, it presents spiritualist cameraless photography as a productive tool for rethinking and reframing the photographic medium from a cross-disciplinary perspective questioning medium specific histories and dominant genealogies.