You'll have to look carefully to spot this, but this seems like another version of the R41 with an even narrower cap than the 2011 version.
Look hard and you can see that the baseplate and baseplate teeth are slightly narrower, and the cap is 18.0mm wide vs the 2011 which is 18.6mm.
This narrower version on the left, 2011 R41 on the right:
The length of the screw, the shape of the pins and the plating all look like the 18.0mm wide cap is a genuine Muhle cap, so is this another version of the R41?
Look hard and you can see that the baseplate and baseplate teeth are slightly narrower, and the cap is 18.0mm wide vs the 2011 which is 18.6mm.
This narrower version on the left, 2011 R41 on the right:
The length of the screw, the shape of the pins and the plating all look like the 18.0mm wide cap is a genuine Muhle cap, so is this another version of the R41?