This Autographed 1980 SW Empire Strikes Back #28 Card with the inscription of "S.F.X" has been Personally Signed by Roy Rodgers, Ron Hone, Roger Nichols, Dennis Lowe, Digby Milner of Star Wars. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.