Penny -

: The back of the coin has changed multiple times, featuring "Wheat" stalks (1909–1958), the Lincoln Memorial (1959–2008), and the current "Union Shield" (introduced in 2010).

: The first pennies, minted until 1857, were much larger than modern versions—exceeding the size of a modern quarter. : The back of the coin has changed

The U.S. penny has undergone significant design and material changes since its inception: featuring "Wheat" stalks (1909–1958)

: Many charities rely on "penny drives" to raise substantial funds through small, effortless donations. the Lincoln Memorial (1959–2008)

: Sorting and handling pennies wastes time for businesses and consumers at the point of sale.