It is a shame to see the door in such a state of disrepair.
I notice that the pressure bar mechanism uses a cylinder with a cutout on the ends of the bars, that mates with a pin on the door jamb.
I don’t recall seeing a setup like this before, I’m used to seeing an offset pin on the pressure bar end that mates with a cutout on the door jamb.
Is the pressure bar setup on this door unusual in this way?