Up for sale is a 2018-19 Panini Flawless Collegiate Michael Porter Jr Rookie Autographs Ruby card serial numbered 1/20! MPJ's jersey number is #1, making this already rare card similar to a 1/1. MPJ is one of the leagues most exciting young players making this rookie card a terrific investment piece and a must own for any Nuggets or MPJ fan. Thanks for looking and feel free to ask questions. Duet to fluctuations in the card market, returns are not accepted.