I regret every asking the question about market value. This thread has gone in the wrong direction of my original question. I suggest if A.S. and Evigeny want to continue discussing the construction aspects of the ring, then please create a separate thread. I also suggest both (especially A.S.) to step back and think about how the post will be taken. Granted there is a language barrier but regardless, tack and politeness is spoken in every language. Ron
