This is one of two purported images of Gef taken by Voirrey Irving.
On the back, there is a caption handwritten in pen: “I. Gef the Talking Mongoose photographed by Voirrey Irving”
Voirrey Irving, “Gef the Talking Mongoose,” photograph, Folder “Gef the Talking Mongoose,” Box A, Eileen J. Garrett Parapsychology Foundation Collection, Collection 331, Special Collections, University of Maryland, Baltimore County (Baltimore, MD).