Just this past weekend, ten 100-year-old pennies sold for a whopping $1.1 million at an auction held by an Irvine-based auction house. Now that is a good return on investment. The coins were sold Sunday night during an auction by GreatCollections. “The ten pennies were specially struck proof coins made for collectors by the United States Mint in Philadelphia in the early years of the Lincoln cents. All are still in pristine, mint red condition and sold for a combined total of $1,113,174,” the auction house said. This Lincoln penny, specially made by the United States Mint in Philadelphia in...