This is a pre-war type Biogon 35mm F2.8 lens for the old Contax. It's an old product, but the lens has no noticeable scratches or clouding, and the characteristic rear element is also clean. The image quality is also fine, and the focusing ring is smooth. Although there are some missing characters on the faceplate, the copper mirror is very clean. A deep rear cap is included, which would cost a considerable amount if purchased separately. Recommended for old lens enthusiasts.