Found the model/serial number. It is DD 65,610. 1917 started with 65,601 so my DD is 10th.
# is right behind the carburetor on intake manifold. Degreased today and saw # very clearly. Also "1" stamped in front of motor on top cylinder and under it so I know it is original. Anyone got one like mine or any photos. Only one picture I have is from 1916 Evinrude catalog.