DENVER — Twenty machines each churn out 750 shiny pennies a minute inside the U.S. Mint’s stately 1904 building in the heart of this city’s downtown. Across the street, five of the coins sit ...

Of course, the proverbial wooden nickel isn’t worth a shiny penny, but there are some rare coins out there that are worth more than just their face value. Lots of times, currency in regular ...

They were simple fun — dropping in a penny, turning the knob and hearing a gumball rattle down the shoot. A long time ago, a shiny penny was a decent bribe for a kid. I suppose now it would take ...