Mark Sutherland Half Hull Model of Marshall Shanderling 18 ft. Catboat Consign Now DeptFurniture/Decorative Arts Mark Sutherland Half Hull Model of Marshall Shanderling 18 ft. Catboat, painted pine hull, black veneer waterline lift on mahogany back board with breadboard ends, signed on Reverse Mark A. Sutherland, 2014. Please note that this auction has ended. Click here for an overview of this auction.