This is a virtually new Novoflex Lens Adapter LEM/NIK NT - to use Nikon Lens on a Leica M Camera.
LEM/NIK NT
The Lens Adapter for Nikon Lens to Leica M Camera from Novoflex allows the use of Nikon mount lenses on the Leica M camera body.
These adapters allow Nikon lenses that do not have aperture control rings to work with the Leica M as well. Novoflex is a top quality manufacturer of lens adapters.
NOTE: With a few Nikkor G-series lenses the weather sealing on the lens has to be removed to fit with this adapter. This does not affect the function of the lens.
Asking $179.