To adjust the speed of the clock, there is a screw under the pendulum. Turn it upward to make the clock run faster. Turn it down and the clock will run slower. The old table clock is a type of old clock. Generally produced before the late 1970s and widely used in the 1980s, it is a mechanical winding clock. There are many styles of old table clocks. In terms of color, they are generally bright yellow, orange, army green, peacock blue, lake blue, dark khaki, dark brown, etc. In terms of appearance, the usual model is a rectangular, vertical clock with a circular clock interface in the center of the upper half; in the lower half, there is a "pendulum" for telling the time in a transparent rectangular frame, and there are often various patterns printed on the glass. There are various pictures of animals, flowers, mathematical graphics, etc., among which the "panda eating bamboo" style is the most popular.

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