Wayne Gretzky Autographed 1990-91 Pro Set Card #394 Los Angeles Kings Auto Grade Gem Mint 10 Beckett BAS #15496446. Mill Creek Sports Product ID: 214251. This is a 1990-91 Pro Set Card #394 that has been hand signed by Wayne Gretzky.The condition of the signature was graded a Gem Mint 10 by Beckett BAS. It has been certified authentic by Beckett Authentication Services (BAS) and comes encapsulated in their tamper-proof holder. Item type: The images and description are of the exact item you will receive. We have a full time retail store that has been open in the Seattle area since 1991. Mill Creek Sports 13616 Bothell Everett HWY Mill Creek, WA 98012. Powered by SixBit's eCommerce Solution.