Coffin screws are scarce and come in a variety of designs when we are fortune enough to acquire them. This one is our most exceptional one. It is in the shape of an open bible. It appears to be made of lead.
The open bible across the top measures 1 3/8 inches by 5/8 inch. The height of the finial is 3/4 inch. The screw-back (which is part of the finial) is one inch long.
We will probably never see another one like this.