This is a fabulous Voigtlander Vitessa T camera supplied with a Voigtlander 100mm F4.8 Dynaret lens. This camera is not supplied with a Voigtlander Turnit finder that would be useful with the 100mm lens. In case you haven't seen one of these working the plunger advances the film - see las video.
 
Designed a a competitor to the Leica M cameras. The Vitessa T hit the sales floors of camera shops in 1957 and if you were a user of the Vitessa L, the right hand shutter release and the left hand combi-plunger to advance the film and reset the shutter felt just the same.  The unique design of what was known in Germany as The Leuchtturm, or The Lighthouse, was still popular with photographers who enjoyed the fast-paced style of shooting it allowed.
With the addition of different lenses, however, Voigtlander needed to design a viewfinder that would work with a camera body designed for 50mm focal length lenses. Their answer was a set of nearly opaque viewfinder that had framelines for the 35mm f/3.4, 100mm f/4.8, and 135mm f/4 DKL-mount lenses that Voigtlander offered. With these viewfinders, users of the camera kept both eyes open and the framelines from the viewfinder were superimposed into one image in the photographers brain.  With a little bit of practice, it became second nature to keep ones eyes open while shooting and the results were most definitely worth learning a new trick.
With a build quality that was as good as anything on the market and lenses that perform just as well today, the Vitessa T deserves a place in your hands and in your collection.