Ted- To expand on what Gordon said, a ball joint torsion leaf stack will have 4 large flat bars stacked together, and on the top and bottom of the stack 3 small bars (2 side by side, 1 on the outside). One stack in the top tube and one (identical) in the bottom. Before the select-a-drop and torsion adjusters were invented guys would pull some of the small leaves out to achieve that Cal Look stance.
What they look like (pics stolen from the Samba)