Hi, sorry I didn't list the adapters used. The adapter attached to the Nikon Z6 was a "no name", probably made in China, Leica M to Nikon Z adapter.
To that adapter, the Leica M lenses mounted directly. For the Leica LTM mount lenses, I used the appropriate Leica LTM to M adapters, then mounted those lenses to the Leica M to Nikon Z adapter.
For the Nikkor rangefinder lenses, in the original Nikon S mount, I used an Amedeo (Nikon S to Leica M) adapter attached to the Nikkor rangefinder lenses, then attached that to the Leica M to Nikon Z adapter, then to the Nikon Z6 camera.
Hope that helps.