2019-20 Prizm WNBA Sabrina Ionescu Signatures Prizms Black Rc #SG-SIO. Since 1999, Blowout Cards has strived to provide the highest level of customer service to collectors in the trading card industry. With one of the largest inventories of sports & gaming cards in the world, we are the premier destination for all things cardboard!! And if you’re ever in Northern Virginia, don’t forget to visit our retail storefront and say hi! Other Things To Know. Serial Number = 1/1 Card Notes = None Subgrades Centering = n/a Corners = 9n/a Edges = n/a Surface = n/a Autograph = 9 Population = n/a 96 Normal 0 false false false EN-US X-NONE X-NONE Population Higher = n/a. The item “2019-20 Prizm WNBA Sabrina Ionescu Black Autograph Auto Rookie Rc (1/1) BGS 9″ is in sale since Wednesday, April 21, 2021. This item is in the category “Sports Mem, Cards & Fan Shop\Sports Trading Cards\Basketball Cards”. The seller is “blowoutcards2″ and is located in Sterling, Virginia. This item can be shipped to United States.