Conservators at the MAC Lab have completed treatment on wooden timbers from Fort Frederick in Albany, New York. Built in 1676 to protect Albany from Native Americans, Fort Frederick was originally comprised of two small buildings surrounded by a stockade. After the French and Indian War, the people of Albany salvaged much of the fort’s construction material and, during the Revolutionary War, what remained of the fort was used as a jail. The recently conserved timbers are the remains of part of the stockade that was left underground when the fort was dismantled in 1789. Conservation treatment included desalination, polyethylene glycol impregnation, and vacuum freeze drying.