The image shows a black and white photo of a pendulum with a globe on top of it, sitting on a table with a color chart beside it.
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The image shows a black and white photo of a pendulum with a globe on top of it, sitting on a table with a color chart beside it. The pendulum is made of metal and has a cylindrical shape with a handle on one side and a spindle on the other. The globe is spherical in shape and is placed on the top of the pendulum. The color chart is composed of a variety of colors, including blues, greens, yellows, and reds.