Granelda classifieds: Xene Cert (Xene Ltd) provides independent authentication, grading and certification for coins, bank notes, stamps, trading cards and rare books, in London since 2014. Your item goes through documented chain of custody, multi-stage examination and sealed encapsulation, with a Lloyd’s-backed lifetime guarantee—submit an item via https://xenecert.com/. We don’t broker, we certify—so you can buy and collect with confidence.