This is a Blue Authentic Mitchell & Ness New York Knicks 1991-92 HWC Swingman Jersey that has been hand signed by Patrick Ewing. This jersey is Size L. 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.