Sorry, have been away. Actually, Fernando, upon thinking seriously (
)about your comment, you do make an important observation that these things had all different styles and shapes (Neuman has one above that looks like it has door knobs for weights!). I've seen the square bars on the full/half shot types, round bars on expanding bar shot and now octogonal on the type previously mentioned. With such variety, it might be hard to pin-point all the types. I'm going to post pics of mine soon...