Find a penny, pick it up, and all day long you'll have good luck -- potentially in the form of thousands of dollars. Pennies ...

Although they have a face value ... 1944, and the same mistake happened again. Fewer than 10 1944-D steel wheat pennies exist ...

There is a regular 1922 and weak D type, but the no D is worth ... penny could be valued anywhere between $500 to $12,000. In 1943, the U.S. switched to zinc-coated steel to help save copper ...