Guaranteed to pass ANY third party authentication or your money back. I stand by this signature 100% and will refund your payment to any authentication company that doesn't uphold its' authenticity. (It won't happen!) Great piece of history and an excellent signature. Buy with confidence as I stated earlier, I stand 100% behind the signatures I list. Please contact me with any inquiries or questions. Thanks for looking and have a fantastic day! Any questions, shoot me a message. Th...anks for looking!