I have for sale two Zeiss folding camera both use 120mm film. Both work fine. Camera one is a Zeiss Ikonta 520/15 C which I have change to use 120mm film. Lens is a Novar 1:6.3/120mm lens. Have with the camera are papers that explain how I did it. $30.00 The other camera is a Zeiss Ikonta 521/2 with Novar 1:3.5/105mm lens. Have leather case with this camera. $30.00 or $50.00 for both. No return, you pay for shipping cost. Use PM if you want the cameras.
Sent a PM for the 521/2.
if you still have them i would be interested in both