12. Shutter cocking lever. In order to take a picture the shutter spring needs to be tensioned. This is achieved by using this lever, an arrow marks the direction to wind the lever in order to cock the shutter. Do not force it, the assemblies are made from brass and are therefore quite delicate. If there is heavy resistance, the mechanism probably needs cleaning. When cocked this lever will be roughly perpendicular to the camera.

The shutter itself consists of two spring steel blinds, controlled by air escaping from a cylinder.

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