i have a scott atwater 7.5 outboard serial # 33351924 if i understand correctly this is a 1953 7.5 twin cylinder outboard and i believe it to be a gold penant model which seems to be rare i am wanting to know if this is correct. Also i cannot find out what the last four numbers of the serial # indicate. Lastly the motor runs but could use some repairs and freshening up is it worth the effort or is it to old and costly to get into and i should just sell it or part it out. all replies are appreciated