This is a Leica MP2 with Wetzler Electric Motor Winder. In December, 2010 this MP2 sold at auction for €402,000.
The MP2 is a modified M2 and not a revised MP. It was produced by Leica in 2 batches – 12 in 1958 and 15 in 1959. These differed from the M2 in that it came equipped with electronics for the Wetzler Electric Motor Winder shown in the picture above. The winder coupled to the intermediate gear of the shutter. The motor grip contained the batteries that powered the motor and screwed into the base of the motor.
The MP2 shown here is one of two black MP2’s known to have been produced. The remainder were chrome.