This is a "Como Siempre" Signed Authentic ONL Charles Feeney Spalding 1970-72 Baseball that has been Personally Signed & Autographed by Roberto Clemente of the Pittsburgh Pirates. Clemente single signed balls are very hard to find. He added "Como Siempre" along with his signature. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by JSA #B59230.Press Pass Collectibles offers a 100% Lifetime Guarantee on all Autographed & Signed Pittsburgh Pirates Roberto Clemente memorabilia.