70E was probably not around at the time of this install, looks to be vintage 70's or 80's, probably about the time the code changed not allowing unprotected service conductors to be run through the house, I just fixed a bunch of homeowner issues in a house built in 81. This was in the metropolitan Atlanta area where the meter was at one end of the house, with the panel and service disconnect at the other end. Apparently the service conductors were run between the first and second floor because I didn't see it in the attic. I know they had to have inspections in that area at that time.