Leica-R Elmarit 35/2.8 version

[MEPER]

Is this version of the Leica-R Elmarit 35/2.8 how it looked or is the lens put in kind of adapter?
I would expect such a lens to be a bit shorter?
It is probably just an older version that was designed like this?
What image quality can be expected from such a lens?
Probably at same level as a Nikkor-F 35/2.8?

[pluton]

The 35/2.8 appears to be sitting on top of a Leica R extension tube intended for the Leica R 60/2.8 Macro lens. Link: https://www.mkkcamera.com/leica-macro-extension-tube-14198-for-r60-2-8-lens-643/

[MEPER]

Ok, so you get an additional Leica R extension tube!