A signed 8x10 inch photo, autographed in-person by Penn Jillette and Teller of the legendary magic duo Penn & Teller. In-Person Signature. Authentication: BAS (Beckett Authentication Services) Certification Number: U42543 Collector Note: Dual-signed pieces from Penn & Teller are highly desirable, celebrating one of the most iconic and influential magic acts in entertainment history. Authentic in-person autographs from the duo are increasingly sought after by collectors of magic and performance memorabilia. A striking, display-ready collectible honoring a legendary magic partnership.