‘Bond King’ Bill Gross Is Selling His Stamp Collection, With One Expected to Fetch up to $5 Million
From the article: "...A one-cent postage stamp from 1868 is expected to become the most expensive U.S. stamp ever sold when it heads to auction in June. 
Known as the “Z-grill,” the stamp is the most-valued piece of what some industry observers have called the most complete and significant collection of American postage stamps ever assembled, one that was built over decades by a man nicknamed the “Bond King.”
William Hunt “Bill” Gross—a 79-year-old investor and fund manager..."
Article Reference: www.barrons.com
