Korean sv4a Pokemon Booster Box Shiny Treasure ex This case of Japanese 151 booster boxes sat under my desk for a few years and silently became the second most expensive sealed item in my collection. Coincidentally, I bought this from @ Pokemon 151 Booster Bundle Case Protector Set Of 5, Scratch & UV Resistant (0.50mm Thick) UV Protective Trading Card Case Booster Box Prices Pokemon Japanese Shiny Treasure ex Pokemon Cards