Drift wood. Retrieved from local water's in beautiful Lake Huron near the Old Spanish Mills, on Aird Island, Which closed in 1927. These old sawed wooden planks have been under water for at least 81 years. You can read more about this at http://www.ontarioabandonedplaces.com/spanishmill/spanishmill.asp They've been dried, and planed on ONE side, to make a unique painting surface! Contact me by E-mail to place your order s.beckerton@sympatico.ca