There are too many defects to list them all. The entire installation is improper and should be corrected by a qualified electrician. There’s no need to evaluate this any further.
When I see FPE panels I always recommend an evaluation of the electrical system. These panels are old and there has been controversy over them. Some electricians say they are OK others say they need replaced. I have read articles on these that say the breakers can fall out when the panels are open, so I do not even take the cover off. Also, most of the time when I find one it is a 50 or 70 amp main which is rather small in today,s world. If it was me would recommend an evaluation by a licensed electrician and upgrade to non screw in fuse type panel.