This is the FED Mikron Preseries, not to be confused with Prototype which is in separate entry posted by nightphoto (Bill Parkinson). This camera differs slightly. The inscription is now double-stroke vs filled-in on the prototype and the little lever around the lens is green, as well as there is a dot for the aperture indication vs little teardrop shape on the prototype.

Unlike the early version of production model this one still has the word FED on top of the body and the leatherette texture is different from production. Last image compares the Preseries and the early production models.

Collection of Vladislav Kern