[Copper plated folding square]
Copper plated folding square, clear, 17.5cm long, 2.7cm wide, 0.3cm thick. Made by the Qing Palace Building Office. The old collection of the Qing Palace
This is a folding square with no inscription on its surface, but its scale and length are the same as those created in the Qing Dynasty. The scale is marked by Arabic numerals.
![图片[1]-Copper plated folding square-China Archive](https://chinaarchive.net/Qing dynasty/Clockwork instrument/23749[1024].jpg)
![图片[2]-Copper plated folding square-China Archive](https://chinaarchive.net/Qing dynasty/Clockwork instrument/23748[1024].jpg "铜镀金折叠矩尺打开状")
铜镀金折叠矩尺打开状
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