I picked up this Voigtlander Vito II today at the San Jose photo fair. This particular Vito II is a later generation with Prontar SVS shutter and was introduced around 1954. The lens is a Color-Skopar f/3.5 50mm.
The camera is fully manual with shutter speeds from 1/300 to 1 sec in addition to bulb. There is a cable release socket for long exposures. Focusing is achieved by rotating the lens that has distances marked on it in feet. The lens also has symbols to represent "near" (8 to 15 feet) and "far" (15 feet to infinity) which work as zone focusing with using an aperture of f/5.6 or smaller.
The camera has an interesting feature whereby you can manually set the frame counter to any number you wish. This means you can shoot half a roll, wind it back to load a different roll and when you want to reload the first roll, you set the frame counter back to the way it was.
This camera appears to work. Shutter speeds change depending on the setting. I just shot a test roll so I will see if the bellows or any of the seals leak once I get that developed.