The value of pipe #007 is n/a points.
Douglas Owens read of my interest in these odd pipes in Pipes Digest and sold me his collection. This is one of them. It is the first I knew that they were ever made in this shape. I got a better example of the shape and color, though, and gave this one to Al Blankenship along with a couple of others. To see why take a look at the cut-away he prepared and gave to me.