The Maine State Museum describes it as "the only pre-Columbian Norse artifact generally regarded as genuine found within the United States". The American Numismatic Society has stated that "There is no reliable confirmation on the documentation of the Goddard coin, and much circumstantial evidence suggests that someone was deliberately trying to manipulate or obfuscate the situation. The Norse coin from Maine should probably be considered a hoax." An analysis by anthropologist Edmund Snow Carpenter, published by the Rock Foundation, concluded, "not proven".
A local resident, Guy Mellgren, said that he found this coin on August 18, 1957, at the Goddard site, the extensive archeological remains of an old Native American settlement at Naskeag Point, Brooklin, Maine on Penobscot Bay. A 1978 article in Time called the discovery site an ancient Indian rubbish heap near the coastal town of Blue Hill. Over a lengthy period, a collection of 30,000 items from the site were donated to the Maine State Museum. The coin was at first identified as a British penny from the 12th century and much of the circumstances of its finding were not preserved in the record (as was the case with the majority of the 30,000 finds). The coin was donated in 1974.
In 1978, experts from London considered that it might be Norse. Kolbjorn Skaare of the University of Oslo determined the coin had been minted between 1065 and 1080 AD and widely circulated in the twelfth and thirteenth centuries. The Goddard site has been dated to 1180-1235, within the circulation period of pennies of this type. The people living there at the time are generally considered to be ancestors of the Penobscot. While the date is around two hundred years after the last of the Vinland voyages described by Norse sagas it is well within the period during which the Norse lived in Greenland and could have potentially visited North America.
By some accounts the penny was found with a perforation, hinting it was used as a pendant. This area of the coin is said to have since crumbled to dust from corrosion.
The penny's coastal origin has been offered as evidence either that the Vikings traveled further south than Newfoundland or that the coin might have been traded locally. However, the penny was the only Norse artifact found at the site, which according to substantial evidence was a hub in a large native trade network. For example, a single artifact generally identified as a Dorset Eskimo burin was also recovered there, and may support the idea that both the burin and the penny could plausibly have come to Maine through native trade channels from Viking sources in Labrador or Newfoundland.
It has been suggested that the explanation that the coin was either brought by the Vikings or traded from a Viking site is weak because no coinage has been recovered from the North American Viking site of L'Anse aux Meadows. However, this site is around two centuries earlier than the Maine coin site, and was subject to an orderly evacuation.
On the other hand, this Maine penny and other similar coins of this era were available on the open market in 1957; therefore Mellgren could have the means and the opportunity to plant the coin at the site, or could be deceived by someone else planting the coin – though it is unclear what the motive may have been.
The identity of the Maine Penny as an Olaf Kyrre silver penny is not in doubt. The Maine State Museum website favors the view that it was found at the site and is therefore evidence of Viking presence on the North American continent, although the Museum states "the most likely explanation for the coin’s presence is that it was obtained by natives somewhere else, perhaps in Newfoundland where the only known New World Norse settlement has been found at L’Anse aux Meadows, and that it eventually reached the Goddard site through native trade channels." However, the possibility that it may be a hoax has been raised. An assessment of the validity of the find by Edmund Carpenter concluded: "Not proven". There are enough questions regarding the provenance of the coin to leave its archaeological significance unclear.
- Beardmore Relics, Carpenter likened the Maine penny to the Beardmore Relics, which were said to have been discovered in Ontario in the 1930s.
- "The Goddard Norse Coin". Maine State Museum.
- "Current Cabinet Activities". American Numismatic Society. Spring 2005.
- Carpenter, Edmund (2003). "Norse Penny".
- "Bye Columbus". Time. 1978-12-11.
- Sutherland, Patricia. 2000. “The Norse and Native Norse Americans”. In William W. Fitzhugh and Elisabeth I. Ward, eds., Vikings: The North Atlantic Saga, 238-247. Washington, DC: The Smithsonian Institution.
- Prins, Harald E.L., and McBride, Bunny, Island Domain: Wabanaki Peoples at Mount Desert Island, Maine, 1500-2000., Vol.1., pp.40-42. Boston: National Park Service, 2007.