The Super Ikonta C was a high-end medium format, coupled rangefinder camera. It was produced in Germany from 1933 to 1955 by Zeiss-Ikon. It uses 120 roll film to produce 6x9 format negatives. (It can also produce smaller 6x4.5 negatives if you use an accessory reduction mask.) It's a wonderful design and it’s well known for its excellent performance. A properly serviced and adjusted Super Ikonta is a joy to use and they've kept photographers all around the world smiling for over 80 years. Get one, and you'll have something that'll last a lifetime and keep you smiling the whole while.