1964 BERTRAM Express, The Bertram was repowered with 140 HP Mercruiser Engines with Alpha One Drives, Has extended bimini top, cushions were recovered 4 yrs. ago, has never had any blisters these old hulls are not prone to them. The hull laminate is 27 layers of hand lay up, at the keel the hull is 1.24 inches and at the shear around 7/16", has trim tabs,. Very ecomical to operate. 800 hours, the owner has owned this boat over 25 years