Cassius Clay 1964 Slania Stamps World Champion Boxers #23 PSA 10Cassius Clay 1964 Slania Stamps World Champion Boxers #23 PSA 10SKU: 26458755$340.45PriceExcluding Sales TaxAdd to CartPRODUCT INFOCert #26458755 RETURN & REFUND POLICYPlease see our return policy. SHIPPING INFOCalculated at Checkout.