The above pictured camera is described as Leica M9-P “20 Years Leica Shop Vienna” with Leica Noctilux-M 50mm f/0.95 ASPH. My guess is that the special part is the silver Noctilux, since the camera looks exactly like the new M9-P (see also this picture of the same set). Here is the rest of the description:
“Leica M9-P silver chrome finish with black saddle leather. The top cover is engraved with the “Classic Leica Script” and the serial number of the camera. Each camera has a special edition number on the hot shoe. The camera is shipped with the Leica Noctilux-M 50mm f/0.95 ASPH. lens in silver anodized finish.
Quantity: Limited to 20 units
Launch Date: June, 16th 2011”