The work comprises a reconstruction of the plans, the mechanisms and the artistic aspects of an Eighteenth Century baroque opera stage by means of a model in the scale of 1:20. The model is made of wood, metal, linen and hemp-ropes only, and all stage-effects can be activated and operated by hand via historically accurate pulleys. The work?s aim is to provide a possibility to demonstrate the baroque magic theatre, which allowed a change of scenery on open stage within seconds. These technical possibilities contain a change of all scenery wagons, as well as all Sofitten at the same time; a lifting platform; two smaller and a bigger flying machinery, all moveable horizontally and vertically; moveable clouds. An additional reconstruction of a thundermachine, which can be integrated in the stage, completes the features. Due to the half-closed structure of the model it is also possible to furthermore demonstrate light-effects. The lower machinery consists mainly of the mechanisms for the scenery wagon which can be steered via a central axle and pulleys. Another, smaller, axle and a matching pulley operates the lifting platform below the proscenium. The upper machinery controls the Sofitten and the Abschlussprospekte, again handled via a central axle. Smaller axles, directed from the working galleries, are responsible for the flying machinery and the clouds. The flyspace is merely for guiding ropes and redirecting them to the working galleries. Additionally, the attic offers space for extra decor or scenery. The stationary highlights are the stage-floor with a gradient of 4 percent, the proscenium arch with columns, four working galleries and the façade, which was built on one side only to permit a closer look at the inside. The thesis consist first and foremost of the model itself, as well as an additional documentation illustrating the reconstruction of the plans, the function of the mechanisms and the artistic aspects based on photographs and sketches.