In the larger scheme of things, the exact dimensions and orientation doesn't matter, as long as the reactances posed by the matching system remains the same. Possibly done for manufacturing efficiency. Copyrights and patents have nothing to do with it, as Hy-gain manufactured it before and still does now. The 2011 version works as well as my 1975 version. I love it.
Ed, I responded to you about the Penetrator manuals you have, and I gave you the serial numbers for the ones I have. Could you check your file and email me anything you have with a different number?
edromans@comcast.net