SAN FRANCISCO (CBS/AP) — An intimate letter that gangster Al Capone wrote while imprisoned at Alcatraz has sold at auction for $62,500.

The winning bid came Monday at an auction in Cambridge, Massachusetts. The buyer was identified only as a collector from the Chicago area who wished to remain anonymous.

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Auctioneers had expected the letter to fetch around $50,000.

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The three-page letter was addressed to Capone’s son, Albert “Sonny” Capone. The mobster signed it, “Love & Kisses, Your Dear Dad Alphonse Capone (hash)85,” which was his number at Alcatraz in San Francisco Bay.

Experts say it shows that the notorious mobster who ruled gangland Chicago during Prohibition had a soft side.

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