EDISON, Thomas Alva, letters, autographs, documents, manuscripts Home | Archive | Facsimiles | Forgeries | Back EDISON, Thomas Alva (1847-1931). American inventor. Signature in ink on a small card (laid down on the remains of an album leaf), no date. [No: 23515] This is the archived description of an item that has already been sold. Please contact me if you would like any further intormation.