The Coller
Not only was the coller a exellent way to restrain someone but it could also be equally a good way to torture and kill someone. The collar was furnished with spikes and was held fast by cords stretching to the four corners of the room. If the person to were lay down, lean forward or backwards, lay down, or anything other than sit up or stand up the spikes would go right into their neck being potentially fatal depending on the size of the spikes.