William H. Mumler, United States, two pages from an album of 112 cartes de visite and cabinet cards 1870-75. Eight albumen silver prints 10 x 6 cm approx (each) 28 x 20.3 cm (album page). The College of Psychic Studies, London. Find out more at: http://www.darkshadowghosttours.com/?p=198
Also on these boards
In 1968, the brother of Robert A. Ferguson appeared beside him during a speech at a Spiritualist convention. "Walter" was killed during World War II. What is fascinating about this photograph is that it is a Polaroid and incapable of being a double-exposure. And if it were a double-exposure, the difference in contrast would not be evident.