I have a set of 4 inch clamping rings which were previously on a 100mm scope (replaced them because I needed 3-Point Rings). I was told when I purchased the scope that they are the kind manufactured by Ken Dauzat (Ken's Rings). I would say that they are in quite good shape. There are a few minor scratches in the paint. I replaced the locking screws with stainless steel hex head cap screws. The chrome on the hinge bolts/nuts is slightly brown in spots, but still cosmetically OK. The felt is in good shape. Each ring has a 1/4x20 female thread in the bottom.
I'll accept $50 shipped in the CONUSA. Money Orders please. Thank you.