A 1795 reeded-edge U.S. penny, one of only seven known to exist, recently sold for nearly $1.3 million at auction—the first time a one-cent coin has cracked the million-dollar price barrier. The sale, at Beverly Hills,Calif -based Goldberg Coins & Collectibles, follows other hot sales of gold coins, which are up as much as 75% at Dallas-based Heritage Auctions Inc. Popular $20 U.S. Saint-Gaudens gold pieces from the early 20th century are commanding $1,700 apiece, sight unseen, in decent, though not perfect condition, topping a record high last seen more than two decades ago.