Antique French Oak that was cut between 1700 & 1800. This material was used in construction of factory buildings and houses during this time period and was actively being used during the French Revolution of 1789 to 1799. During a remodel of a French mill, we obtained a limited quantity of stock. Old Growth French Oak ¾" x ¾" x 5" 2-pieces Comes with a Certificate of AuthenticityWoodcraft Woodshop