Originally Posted by
ken horak
looks like the top left breaker is the main for the panel. Looks like it is back fed from the meter.
In looking at the photos again, looks like you are correct. I did not see that other conductor up in the far left corner before, so it looked like one went around to a lug on each bus, but the other one I was looking at is the neutral.
So the question now becomes "Is that backfed breaker properly secured in place?"