[Plotting tablet]
Plotting tablet, clear, 27.5cm long, 22.5cm wide. Made in Paris, France. The old collection of the Qing Palace
The flat panel is made of copper, rectangular, with three sides of 0 º to 90 º, 90 º to 120 º, 120 º to 180 º, and the other side of 0 º to 310 º. A vertical ear sight is set at both ends of one side of the tablet, which can be used as a calibration. A movable vernier is set at the lower left corner, 33 cm long and 2 cm wide. The vernier is engraved with 0 º to 380 º. There are drawing drawings on the flat panel, which can be measured while drawing, convenient and practical. “PARIS Centvedes degvez” is engraved on the tablet
![图片[1]-Plotting tablet-China Archive](https://chinaarchive.net/Qing dynasty/Clockwork instrument/23722[1024].jpg)
![图片[2]-Plotting tablet-China Archive](https://chinaarchive.net/Qing dynasty/Clockwork instrument/23721[1024].jpg "绘图平板仪工作部位")
绘图平板仪工作部位
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![[Qing Dynasty] British female painter—Elizabeth Keith, using woodblock prints to record China from the late Qing Dynasty to the early Republic of China—1915-China Archive](https://chinaarchive.net/wp-content/uploads/2022/11/image-191x300.png)
