Goergen Very large lens shutter. Needs servicing. Cond. - 6H [4006].

125mm in diamater, with a 76mm diameter recess for the lens.

A very simple mechanism, but does not work correctly. When you press the shutter release the blades move, but do not fully open. The shutter should open and close. Needs mending. We can recommend a company to do this, or you could do it yourself if you have the time and skills.