EDISON, Thomas Alva, letters, autographs, documents, manuscripts Home | Archive | Facsimiles | Forgeries | Back EDISON, Thomas Alva (1847-1931). American inventor, scientist and businessman. Fine signature in ink on a card with bevelled edge, evidently intended as a visiting card, no date. [No: 24644] This is the archived description of an item that has already been sold. Please contact me by email if you would like any further information.