Walter III, #1 - Voice-Cut-Out Machine
A glass lantern slide of Dr. Richardson speaking to Margery through a voice-cut-out machine, which the medium, Margery, used to speak with the spirit, Walter. Thomas Glendenning Hamilton verified this process in 1925., Luna Collection ID - 28::UMANITOBALCM::NA, Luna Object ID - 82105, Luna Image ID - 118887