A signed 8x10 inch management photo, autographed in-person by Isaac Hanson (guitar/vocals), Taylor Hanson (vocals/keyboard), and Zac Hanson (drums/vocals) of the pop-rock trio Hanson. In-Person Signature. Authentication: JSA (James Spence Authentication) Certification Number: CB92528 Collector Note: Multi-signed pieces from Hanson are highly desirable, featuring all three members of the iconic sibling trio. Fully signed photos are sought after by collectors of 1990s pop-rock memorabilia and longtime fans of the band. A display-ready, standout collectible from one of the most recognizable pop-rock groups of the late 1990s.