The Rolleiflex 3.5E TLR (Twin Lens Reflex). This camera has the 75mm F3.5 Carl Zeiss Planar Lens with serial number 1768955.

This camera works great except for the light meter, which is not functional. The light meter does not affect your photos, it just gives you a guide where to manually set your exposure. We would recommend using an external lightmeter regardless for accuracy.

 This is a great camera at a really good price.