The Maine Penny is an iconic coin that has been a part of American history for over 200 years. It was first minted in 1820 and has been a popular collectible ever since. The coin features an image of a pine tree on one side
From Wikipedia
The Maine penny, also referred to as the Goddard coin, is a Norwegian silver coin dating to the reign of Olaf Kyrre King of Norway (1067–1093 AD). It was claimed to be discovered in Maine in 1957, and it has been suggested as evidence of pre-Columbian transoceanic contact.