This is a Purple Authentic Mitchell & Ness Hardwood Classics 1991-92 Utah Jazz Jersey that has been hand signed by Karl Malone. This jersey is Size XL. This item has been witnessed and certified authentic by Beckett Authentication (BAS) and comes with their tamper-proof witness sticker. Beckett Authentication has recently changed their physical certificate card policy where they no longer match their tamper-proof sticker with a physical certificate. A certificate can be printed on Beckett's website for the matching authentication number.