It could be either, or an owner modified factory boat. The link below may help you find if it has a serial number. White made a similar looking but smaller boat as shown below. They didn't use serial numbers during that era. Nice find,
Many old wooden canoes and boats have a serial number on both inside stems and a decal or tag with the manufacturer's logo on the bow deck. The number is usually stamped on the top of the lower part of the stems. The inside stems are the long curved pieces of wood that form the ends of the canoe. You want to look on the part that extends out from under the decks on the bottom of the floor inside the hull. The serial numbers are stamped in each end of the canoe so check both if a single digit is not clear. These numbers in the stern of boats are occasionally on the edge of the center...