These were generally nailed up, one panel at a time. Does it have the edge coving still in place? If it does, that would come down first.
It's nailed like siding. Not cinched to the surface, so you should have some space under the nail head to grab it, rotate and pull it straight out. You can't put any pressure on the panels or they will crush.
Post some photos if you can.
Ron
It's nailed like siding. Not cinched to the surface, so you should have some space under the nail head to grab it, rotate and pull it straight out. You can't put any pressure on the panels or they will crush.
Post some photos if you can.
Ron