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Image: Ming Dynasty field artillery cannon

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Original image(702 × 980 pixels, file size: 167 KB, MIME type: image/jpeg)

Description: An illustration of a bronze "thousand ball thunder cannon" from the 14th century Ming Dynasty book Huolongjing. The cannon is an early example of field artillery.
Title: Ming Dynasty field artillery cannon
Credit: Huolongjing, from Science and Civilisation in China p.319
Author: Jiao Yu and Liu Ji
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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