File:Heilongjianghandcannon.jpg

This image is a digitalization of the Heilongjiang hand cannon photograph published in 1973.

The image has been derived from: Wei Guozhong. "A Bronze Bombard Excavated at Banlachengzi in Acheng Xian in Heilongjiang Province," Reference Materials for History and Archaeology (Wenwu) 1973/11:52-54

Heilongjiang hand cannon

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