The image shows a black and white photo of a machine in a box, which appears to be a pendulum.
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The image shows a black and white photo of a machine in a box, which appears to be a pendulum. It has a cylindrical shape with a handle on the top and a spindle at the bottom. The pendulum is made of metal and has a few knobs and buttons on the side. The box is transparent, allowing the viewer to see the inner workings of the machine.