The Boston & Maine Railroad Historical Society will open the B&M combine for visitors during the festival. Located at the corner of Dutton St. and Merrimac St., the all wood, open ended, truss rod car is an icon from the B&M’s past.. Society members will be on board to discuss the railroad’s history in Lowell and the New England region, as well. B&M labeled clothing will be on sale. Car is open from 11:00AM to 5:00PM, both days.