2023-24 Upper Deck Boston Bruins Centennial tackles not only one of hockey’s most storied franchises, but one in all of sports. Highlighting 100 years of franchise greats, Hall of Famers and memorable moments, the checklist puts a modern twist on the classic team. Hobby boxes deliver three total autographs, memorabilia cards or autographed memorabilia cards as well as more than a dozen other inserts and parallels. The base set starts with 100 cards, chronicling Bruins players through the years. But that’s just the start. Seven thematic subsets are also on the checklist. These combine to land approximately one per pack and include: All base and subset cards have three levels of serial-numbered parallels: Century (/100), Lucky Green (/25) and Black (1/1). The subsets also have acetate PETG versions that combine to fall one per hobby box. This have a plastic-like appearance. The regular cards don’t get the acetate treatment but they do have Retro Variants (1:6 packs) that carry a throwback-inspired design. Autographs come in a handful of forms, the most common of which are Bear Tracks Autographs, which are 1:9 packs. These also have scarce Dual (/35), Triple (/20) and Quad (/10) cards that deliver multiple signatures. Bobby Orr Ticket to Greatness Autographs are all one-of-a-kind. Not only do they carry a signature from the consensus greatest Bruin ever, but an actual ticket from an important game is embedded in it.