That serial number on the plate makes it a mark 50 but not a mark 50E. That doesn’t mean it wasn’t an electric model from the factory, it just says Mercury’s records say it was a mark 50.
Can you get us some more pictures of the electric start components like the wiring harness from controls to the motor, the starter itself (swing or bendix), etc? That would help. Someone may have gone to alot of trouble to turn it into an electric start but more pictures of those parts would help determine how “factory” everything appears.
It has the very rare electric choke/start version of the Kaminc controls!
Great overall pictures in your link, by the way!
