Rolleiflex Standard Prototype PR150

advanced late prototype of a Standard Rolleiflex with modified viewing hood - now equipped with optical sports finder (two knobs on the front are for the release of the blind and the magnifier separately), the camera is also equipped with two film reminder dials near the focusing knob, both of these features never went into serial production and 2 years later the Rolleiflex Standard has been discontinued, the camera is in excellent condition and good working order, with T Tessar 3.5/7.5cm no.3302528 taking lens, exactly this camera is illustrated in Prochnow's 'Rollei II' on page 16-345 and described on page 16-346