8 x 10 photograph by Nandor Fodor, caption taped under photo reads: “The top of the boxed-in staircase: Gef’s sanctum. The flashlight box is visible on the dark cross beam running in the middle of the room just below the ceiling.”
Nandor Fodor, “Photograph of Gef’s sanctum,” Folder “Gef the Talking Mongoose,” Box A, Eileen J. Garrett Parapsychology Foundation Collection, Collection 331, Special Collections, University of Maryland, Baltimore County (Baltimore, MD).