“The Greatest” must have spent much of his life at the punching bag to earn that title. This Muhammad Ali signed Everlast Gyro Balanced Speed Bag in immaculate condition is from a limited edition signing of 100 with an attached PSA/DNA Certification Number: B59678. The bag features a bold Muhammad Ali signature (“8”) and “61/100” in silver air-pen on the side panel. Opening Bid $150.