A highly coveted silver coin was sold by a Las Vegas man for $12 million. The collectible is believed by many to be the first silver dollar ever struck by the U.S. Mint. Great Collections, an Irving, California-based coin auction company, bought the coin from Bruce Morelan, a 60-year-old Las Vegas business executive, who first acquired the coin at an auction in 2013, paying over $10 million. Three years earlier, the silver dollar had been privately traded for a sum of $7.85 million. Previous owners of the coin include Amon G. Carter Sr., a former publisher of the Fort Worth Star-Telegram, and a number of other numismatic legends, Great Collections stated in a press release. “Without question, this is America’s most coveted silver dollar, and it gave me chills closing the transaction for this piece of history,” Great Collections President Ian Russell said. “This absolutely defines ‘museum-quality,’ in fact, aside from …