Motorgo Row Boat Engine
This is a Lockwood-Ash badge motor made for Sears-Roebuck.
The first example is a later Motorgo, I think the 1920s, as one can tell from the cast tank and crankcase combo. Note the large spring, an unusual feature, used to combat torque steer. This particular example has the desirable, and not often seen, underwater exhaust.
The example, #A 379, is an early Motorgo. The tell is the access to the gear case is where the prop shaft exits the gear case in the 1914/1915 motor, and later motors had the access to the gear case on top. Also, the Motorgo name cast into the exhaust manifold appears only in early motors.