My youngest lives in Virginia. He bought a row house built in 1910. The electrical is the house is a mash-up of knob/tube, Romex and conduit. I consulted two friends of mine: one is a general contractor, and the other is an Electrical contractor. I sent them a photo of the panel ( see attached). There are a minimum of 6 violations in that panel. With, their wisdom, I created a Statement of Work and got 2 quotes.
Replacing a panel is a money maker for a contractor but it needs to be done right and compliant. In Virgina, this work requires a permit and inspection. I live in Chicago and those conditions are the same.
I wouldn't mess with it.