Slab Dimensions : 3 1/4" x 5 1/4". Beckett Authentication Services was established in November of 2016 to provide an autograph authentication service that will be the most trusted and respected in this industry. Led by the two top autograph authenticators in the world, Brian Sobrero and Steve Grad bring their years of autograph experience to form the newest member to the Beckett team. Grad most recently served as principal authenticator for a leading authentication company, building that company's authentication business during the past 15 years. Grad has authenticated many of the finest pieces in the sports collectible hobby, including the highest graded Babe Ruth single-signed baseball and the only known Joe Jackson signed photo.Since 2013, Grad has served as an autograph expert for Pawn Stars on The History Channel, and will continue to appear on the popular show representing Beckett Authentication Services. Sobrero's lifelong association with the autograph industry has helped him develop an unmatched library of exemplars. USER CODE (35) Box 1. This item is in the category "Collectibles\Non-Sport Trading Cards\Trading Card Singles". The seller is "roadgraphs" and is located in this country: US. This item can be shipped worldwide.