An exceptionally rare proof copy of 'Harry Potter and the Philosopher’s Stone' with the misspelled name 'J. A Rowling' is set to auction, showcasing a unique publishing error that enhances its collectible status.
Bill Gross, known as the 'Bond King,' sold the rare 'Z' Grill stamp for $4.4 million, cementing its status as the most valuable postage stamp in the U.S. This iconic 1868 stamp's rarity and unique design propelled its high auction value.
