MPE Vault ledger
Ken Griffey Jr. — chain of custody
Every hand this slab has passed through since it was graded, plus the authenticity fingerprint that ties the record to the physical card. How card provenance works →
🔒 Verified · Secured in the MPE Vault
PlayerKen Griffey Jr.
Year1992
SetUpper Deck
Card #355
GradeMpe Mint
SerialMPE-13420233
⛓️ Authenticity & custody
🔐Authenticity fingerprint #2871c61029e
🧾Ledger reference 447918c2263
🏭Graded & encapsulated by MPE Grading
🏦Held in the MPE Vault · insured digital custody
🔗 Ownership & provenance
No hand-offs recorded yet — this slab is with its original vault
holder.
💰 Sales history
No recorded marketplace sales yet — this card hasn't changed hands on
MPE.