More lenses for a Tenax II

28mm f3.5 Auto Nikkor lens on a Tenax II. Finder is correct one (432/6) for the 2.7cm Orthometar

Rangefinder cameras and wide-angle lenses are an excellent combination. But what is a Tenax II user to do when the only wide-angle lens was a 2.7cm f4.5 Orthometar of which only 302 were manufactured? That is 1/10th the number of Orthometars made in 35mm for the Contax! But it appeared that there might be enough room to fit a Nikkor lens in F mount on a Tenax with the proper adapter.
I watched ebay and was finally rewarded with a lens mount for a 4cm Sonnar missing its optics. I took this lens mount and a Nikon K3 ring to a friendly machine shop and a month and a small fortune later, I had an adapter that will allow the mounting of some Nikon F mount lenses. I say "some" because while the bayonet mount is perfect, many Nikkors project beyond the bayonet flanges. Far enough and they hit the rear of the adaptor.
What works? A early  (non-AI) version of the 105mm f2,5 Auto Nikkor works fine. It appears that it might vignette only slightly. But what I wanted was a wide-angle. An early version of the 28mm f3.5 Auto Nikkor looked like it might work except for the back flange extension designed to protect the rear element of the lens.
 Two hours of careful filing and fitting, and the 28mm Nikkor fit. When combined with the proper 2.7cm Zeiss finder for the Tenax, I was all set. Except for lack of rangefinder focus and its size, it is a perfect combination. And it does not vignette.

Back of the adapter. Beautiful machining including a new latch.

Adapter front.

Our gate, taken with the 28-Tenax II Combo

Our backyard, taken with 28-Tenax II Combo