An illustration of an ampulliform Chinese hand cannon with a gunpowder charge shooting a blast of flame with lead pellets as coviative projectiles. The weapon was called the 'phalanx-charging fire-gourd' ('chong zhen huo hu-lu'). This illustration is from the Huolongjing, a 14th century military treatise compiled by Liu Ji and Jiao Yu, with the preface added in the year 1412.
Это произведение находится в общественном достоянии в тех странах, где срок охраны авторского права равен жизни автора плюс 100 лет и менее.
